Math, Algebra

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Can someone correct my homework.

Evaluate.For number 1
1) /4/ + /-3/

My answer: 7

2)Business & Finance: A country exported $60,00,000 less than it imported, creating a negative trade balance.

My answer: -60,000,000

Evaluate the following expressions numbers 3-4

3) [(2+3)^3-4(5)]+7
My way of solving:
[(5)^3-4(5)]+7
[123-4(5)]+7
[123-20]+7
[103]+7
My answer: 109

4) [25/ (2^3-3)]*2
My way of solving:
[25/(8-3)]*2
[25/5]*2
[5]*2
My answer:10

5) Write fraction as a percent
7/8

My answer: 0.875=87 1/2%

6)Write each decmal as a percent

0.008

My answer:8%

7) Write as a decimal

160%

My answer:1.60

8)Write as a fraction
52%

My asnwer:5/10

9)Science:Jose rode his trail bike for 10miles. two-thirds of the distnace was over a mountain trail. How long is the mountain trail?

My answer: 2/3-10=9 miles

10) perform the indicated operations
3 and 3/4 (divided by ) 1 and 3/8

My answer:2.72

11)Subtract

5/6 -3/5

My answer: .23

12)Add

1/3 + 1/5 + 1/10

My answer:.63

13) Divide .write each result in simplest form:
8/9 (divided by) 11/15

My answer: 1 and 1/20








Jasmine--You are far more likely to get your questions answered if you post a single question per post. Short answer posts could handle two. But volunteers who have just a few minutes will pass these multi-question posts by because it takes too long to answer a single post.
You are correct for #1.

Thank you for letting me know I did what you said to do. thanks for your help

1)

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