Answer:
$57.75
Step-by-step explanation:
If 11 books cost $42.35,
11b=42.35
b=42.35/11
b=3.85
15 books will cost 15b.
15b
= 15*3.85
= 57.75.
15 Books will cost $57.75.
Answer:
57.75
Step-by-step explanation:
First I found the unit rate by dividing 42.35 by 11, which is 3.85.
second i multiplied the unit rate by 15 and got 57.75
