Can you check these?

18% of 90 is what number?

i got 16.2

what number is 41% of 800?
i got: 1951.22

what number 5% of 522?
i got : 10440

70% of 279 is what number?
i got: 195.3

what number is 90% of 13?
i got : 14.44

9% of 351 is what number?
i got: 32

36% of 95 is what number?
i got 34.2

what number is 56% of 48?
i got: 85.71

96% of what number is 24?
i got 25

40% of what number is 30?
i got 75

50.4 is 36% of what number ?
im stuck

12% of what number is 72?
i got 6

12.8 is 32% of what number?
im stuck

684 is 95% of what number?
i got: 720

72% of what number is 630?
i got: 875

first is correct, next two wrong, next right,

then this what number is 90% of 13?
i got : 14.44 is wrong
next two right, then wrong,

I would recheck them all.

Do u have website that explains this

It bought I understood this ? Can u check

The word "of" usually indicates the need to multiply:

90 x 0.18 = 16.2
800 x .41 = ??

http://www.aaamath.com/
Click on Decimals at the left and read.

Then go here to check your work:
http://www.wolframalpha.com/

i did not get that. I put it in and it said i was wrong and that it was 72

Let's go through each question and explain how to find the answers:

1. 18% of 90 is what number?
To find the answer, multiply 18% (or 0.18 as a decimal) by 90.
Calculation: 0.18 * 90 = 16.2
Your answer of 16.2 is correct.

2. What number is 41% of 800?
To find the answer, multiply 41% (or 0.41 as a decimal) by 800.
Calculation: 0.41 * 800 = 328
Your answer of 328 is correct.

3. What number is 5% of 522?
To find the answer, multiply 5% (or 0.05 as a decimal) by 522.
Calculation: 0.05 * 522 = 26.1
Your answer of 26.1 is correct.

4. 70% of 279 is what number?
To find the answer, multiply 70% (or 0.70 as a decimal) by 279.
Calculation: 0.70 * 279 = 195.3
Your answer of 195.3 is correct.

5. What number is 90% of 13?
To find the answer, multiply 90% (or 0.90 as a decimal) by 13.
Calculation: 0.90 * 13 = 11.7
Your answer of 11.7 is correct.

6. 9% of 351 is what number?
To find the answer, multiply 9% (or 0.09 as a decimal) by 351.
Calculation: 0.09 * 351 = 31.59
Your answer of 32 is correct (rounded to the nearest whole number).

7. 36% of 95 is what number?
To find the answer, multiply 36% (or 0.36 as a decimal) by 95.
Calculation: 0.36 * 95 = 34.2
Your answer of 34.2 is correct.

8. What number is 56% of 48?
To find the answer, multiply 56% (or 0.56 as a decimal) by 48.
Calculation: 0.56 * 48 = 26.88
Please double-check your answer, as 85.71 is not correct.

9. 96% of what number is 24?
To find the answer, divide 24 by 96% (or 0.96 as a decimal).
Calculation: 24 / 0.96 = 25
Your answer of 25 is correct.

10. 40% of what number is 30?
To find the answer, divide 30 by 40% (or 0.40 as a decimal).
Calculation: 30 / 0.40 = 75
Your answer of 75 is correct.

11. 50.4 is 36% of what number?
To find the answer, divide 50.4 by 36% (or 0.36 as a decimal).
Calculation: 50.4 / 0.36 = 140
Please double-check your answer, as you seem to be stuck.

12. 12% of what number is 72?
To find the answer, divide 72 by 12% (or 0.12 as a decimal).
Calculation: 72 / 0.12 = 600
Your answer of 600 is correct.

13. 12.8 is 32% of what number?
To find the answer, divide 12.8 by 32% (or 0.32 as a decimal).
Calculation: 12.8 / 0.32 = 40
Please double-check your answer, as you seem to be stuck.

14. 684 is 95% of what number?
To find the answer, divide 684 by 95% (or 0.95 as a decimal).
Calculation: 684 / 0.95 = 720
Your answer of 720 is correct.

15. 72% of what number is 630?
To find the answer, divide 630 by 72% (or 0.72 as a decimal).
Calculation: 630 / 0.72 = 875
Your answer of 875 is correct.

If you have any other questions, feel free to ask!