1. The product of 7/16, 4/3, and 1/2 is

A. 7/12.
(B). 7/24.
C. 21/32.
D. 2 13/48.

2. The total of 36, 78, 198, 475, and 620 is
(A). 1,407.
B. 2,109.
C. 1,731.
D. 1,187.

3. The quotient of 794.1 divided by 7.61, expressed to two decimal places, is
A. 95.83.
(B). 104.35.
C. 786.49.
D. 1,043.50.

4. 35.4% expressed as a decimal becomes
A. 35.0.
(B). 0.354.
C. 354.
D. 3.54.

5. The total of 42, 75, 189, 301, and 728 is
A. 2,301.
B. 1,297.
C. 1,533.
(D). 1,335.

6. The decimal form 1.46 becomes _______ expressed as a percent.
A. 14.6%
(B). 1.46%
C. 146%
D. .0146%

7. The LCD for the fractions 1/3, 3/4, 5/32, and 8/9 is
(A). 288.
B. 24.
C. 64.
D. 3,072.

8. The sum of 1/9, 2/3, and 5/18is
A. 4/15.
(B.) 19/18.
C. 12/9.
D. 8/30.

9. Divide 969 by 26.
A. 29 r 17
B. 28 r 5
(C). 37 r 7
D. 32 r 6

10. If 28% of a sum is $100.80, what is the sum?
A. $129.02
(B). $360.00
C. $277.78
D. $282.24

11. Subtracting 8.263 from 13.48, you obtain
A. 6.815.
B. 5.783.
C. 21.743.
(D). 5.217.

12. A pair of pants with a marked price of $35.00 has a discount of 20%. How much is the discount?
A. $42.00
(B). $7.00
C. $17.50
D. $28.00

13. Express the decimal 2.39 as a percent.
A. 23.9%
B. 240%
(C). 239%
D. .239%

14. The number 1,563,385 rounded off to the nearest million becomes
A. 1,600,000.
B. 1,563,000.
(C). 2,000,000.
D. 1,563,400.

15. The amount $180.00 is what percent greater than $135.00?
A. 35%
B. 133.33%
C. 75%
(D). 33.33%

16. Express the fractions 3/4, 7/16, and 5/8 with the LCD.
A. 9/16, 49/16, 36/16
B. 24/32, 14/32, 24/32
C. 3/4, 2/4, 3/4
(D). 12/16, 7/16, 10/16

17. You wish to mentally estimate the total cost of items that have the following prices: $1.85, $.98, $3.49,
$9.78, and $6.18. Rounding off the items to the nearest half-dollar, your estimate of the total cost of these
items is
A. $23.00.
(B). $22.50.
C. $22.30.
D. $22.59.

18. You purchase a shirt for $8.50. There is a 6% sales tax. Your total cost will be
(A). $9.01
B. $8.98
C. $13.60
D. $8.55
End of exam

19. Express 79.2% as a decimal.
A. .0792
(B). .792
C. 79
D. 7.92

20. Express the fractions 1/2, 3/16, and 7/8 with an LCD.
A. 4/8, 6/8, 14/8
B. 1/32, 3/32, 7/32
(C). 8/16, 3/16, 14/16

Which ones are not correct?

all are correct except

6: C

My 2nd answer for 6th is C, is that correct?

14

To find the correct answers to these questions, we can go through each question and explain the process of finding the answer step by step. Let's begin:

1. To find the product of fractions, multiply the numerators and denominators separately. The product of 7/16, 4/3, and 1/2 is (7 x 4 x 1) / (16 x 3 x 2) = 28 / 96 = 7/24. Hence, the answer is (B) 7/24.

2. To find the sum of numbers, add all the given numbers together. The total of 36, 78, 198, 475, and 620 is 36 + 78 + 198 + 475 + 620 = 1407. Hence, the answer is (A) 1,407.

3. To find the quotient of decimals, divide the numerator by the denominator and round the result to two decimal places. The quotient of 794.1 divided by 7.61 is 794.1 / 7.61 = 104.3515. Rounded to two decimal places, the answer is 104.35. Hence, the answer is (B) 104.35.

4. To express a percentage as a decimal, divide the percentage by 100. 35.4% divided by 100 is 0.354. Hence, the answer is (B) 0.354.

5. To find the sum of numbers, add all the given numbers together. The total of 42, 75, 189, 301, and 728 is 42 + 75 + 189 + 301 + 728 = 1335. Hence, the answer is (D) 1,335.

6. To express a decimal as a percent, multiply the decimal by 100. 1.46 multiplied by 100 is 146%. Hence, the answer is (C) 146%.

7. To find the LCD (Least Common Denominator), first, find the prime factors of each denominator. The prime factors of 3, 4, 32, and 9 are 3, 2^2, 2^5, and 3^2, respectively. Now, take the maximum power of each prime factor that appears in any denominator. The LCD is obtained by multiplying these maximum powers together. 3^2 x 2^5 = 9 x 32 = 288. Hence, the answer is (A) 288.

8. To find the sum of fractions, first, find the LCD. The LCD of 1/9, 2/3, and 5/18 is 18. Then, convert the fractions to have the same denominator of 18 and add the numerators. The sum is (1 x 2 + 2 x 6 + 5 x 1) / 9 = 19/18. Hence, the answer is (B) 19/18.

9. To divide two numbers, perform the division operation and express the remainder as "r" followed by the remainder value. When you divide 969 by 26, the quotient is 37 and the remainder is 7. Hence, the answer is (C) 37 r 7.

10. To find the original sum, divide the given amount by the percentage in decimal form. If 28% of a sum is $100.80, then 100% (the original sum) is 100.80 / 0.28 = $360. Hence, the answer is (B) $360.00.

11. To subtract decimals, align the decimal points and perform the subtraction operation. Subtracting 8.263 from 13.48 gives 13.48 - 8.263 = 5.217. Hence, the answer is (D) 5.217.

12. To find the discount amount, multiply the marked price by the discount percentage. The discount on a pair of pants with a marked price of $35.00 and a discount of 20% is $35.00 x 0.20 = $7.00. Hence, the answer is (B) $7.00.

13. To express a decimal as a percent, multiply the decimal by 100. The decimal 2.39 becomes 2.39 x 100 = 239%. Hence, the answer is (C) 239%.

14. To round a number to the nearest million, consider the digit immediately to the right of the rounding place. If it is 5 or greater, round up. If it is less than 5, round down. The number 1,563,385 rounded to the nearest million becomes 2,000,000. Hence, the answer is (C) 2,000,000.

15. To find the percentage difference, divide the difference between the two values by the original value and multiply by 100. The amount $180.00 is ((180 - 135) / 135) x 100 = 33.33% greater than $135.00. Hence, the answer is (D) 33.33%.

16. To express fractions with the LCD, find the LCD of the given fractions. The LCD of 3/4, 7/16, and 5/8 is 16. Then, convert the fractions to have the same denominator of 16. The fractions become 12/16, 7/16, and 10/16. Hence, the answer is (D) 12/16, 7/16, 10/16.

17. To estimate the total cost, round off each price to the nearest half-dollar and add them together. The rounded prices are $2.00, $1.00, $3.50, $10.00, and $6.00. The estimate of the total cost is $2.00 + $1.00 + $3.50 + $10.00 + $6.00 = $22.50. Hence, the answer is (B) $22.50.

18. To find the total cost with sales tax, multiply the original cost by the sales tax rate (converted to decimal form) and add it to the original cost. The total cost of a $8.50 shirt with a 6% sales tax is $8.50 + ($8.50 x 0.06) = $9.01. Hence, the answer is (A) $9.01.

19. To express a percentage as a decimal, divide the percentage by 100. 79.2% divided by 100 is 0.792. Hence, the answer is (B) 0.792.

20. To express fractions with the LCD, find the LCD of the given fractions. The LCD of 1/2, 3/16, and 7/8 is 16. Then, convert the fractions to have the same denominator of 16. The fractions become 8/16, 3/16, and 14/16. Hence, the answer is (C) 8/16, 3/16, 14/16.

Based on the explanations provided, questions 1, 7, 13, and 14 were answered incorrectly.