Taylor earned $48 48 for 6 6 hours of babysitting and $68 68 for 8.5 8 5 hours of babysitting. how long would she have to babysit to earn $32 32 ?

First we need to find whats the rate for 1 dollar

since 48 dollars for 6 hours
then for 1 dollar = 6/48 = 0.125

since 68 dollars for 8.5 hours
then for 1 dollar = 8.5/86 = 0.125

So both gave the rate to be 0.125
then for 32 hours it will be = 0.125 x 32 = 4

So Taylor will have to babysit for 4 hours to earn 32 dollars

The answer to this problem is  B.