With the 3 problems
1. write 108% as a fraction or mixed number?
2. 4% of what number is 2?
3. 125% of what number is 30?

1. 100%=1 and 1%=1/100
108/100 (can simplify to 27/25) or
1 8/100 (can simplify to 1 2/25)

2. let x be the missing number
2=0.04x (divide each side by 0.04)
x=50
2 is 4% of 50

3. let x be the missing number
30=1.25x (divide each side by 1.25)
x=24
30 is 125% of 24