Answer:percent increase in the puppy's weight = 75%
Explanation:
Step 1
Percent Increase = New weight - Old weight/ old weight x 100
New weight of Elijah's puppy =35 ounces
Old weight of Elijah's puppy = 20 Ounces
Step 2-- Solving
Percent Increase = (35-20)/ 20 x 100
15/20 x 100
=3/4 x 100
= 75%