I need help with these 5 problems?

A : 20%
B : 700%
C: 2%
D: 40%
E: 400%

1)
25/125 x 100%
= 2500/125
= 20%

2)
98/14 x 100%
= 9800/14 %
= 700%

3)
4/200 x 100%
= 400/200 %
= 2%

4)
52/130 x 100%
= 5200/130 %
= 40%

5)
52/13 x 100%
= 5200/13 %
= 400%

The way I think of these is the following:

"of" means to multiply
"is" means equals
"what number" or "what percent" the variable
and all fractions in decimal form (use 0.5 for 50%, etc.)

After that, these are all the same, it's just plugging in the different nubmers to solve for the remaining unknown. I'll dothe first, you can take this info and to the rest to get the answers that answerer #1 gave you with no other explanation.

25 "is" "what percent" "of" 125
25 = n * 125
n = 25 / 125
n = 0.2, or 20%

Hi,

25 is what percent of 125?

25 = 125x
25/125 = x
.2 = x .2 = 20%

20%<==ANSWER

98 is what percent of 14?

98 = 14x
98/14 = x
7 = x
7 = 700%

700%<==ANSWER

What percent of 200 is 4?

200x = 4
x = 4/200
x = .02
.02 = 2%

2%<==ANSWER

52 is what percent of 130?

52 = 130x
52/130 = x
.4 = x
.4 = 40%

40%

What percent of 13 is 52?

13x = 52
x = 52/13
x = 4
4 = 400%

400%

I hope that helps!! :-)