Answer:
100/5-4
Step-by-step explanation:
He spend 100 total, and he spend $5 on each book. So 100/5 would give him how many books total that he bought. If he bought 4 extra you need to subtract that to find out how many books he originally wanted to buy.
use mathwsy
if Area = 169/225
then
S = √(169/225)
S = √169/√225
S = 13/15
1/y -84
7y/12-84
simplify= 1/y-84
32 years
8x12 because there are 12 inches in a foot
8x12=96
96/3
96/3=32
x=48 and y is 132 my guy u welcome