Answer: 23 ounces.
Explanation:
Given : The weight of Gin a's kitten = 5 ounces
Weight gain by kitten in each week = 3 ounces
If the kitten gains 3 ounces each week , then the weight of kitten in x weeks = (Initial weight)+ 3 (x)
= 5 +3x
At x= 6 , we have
5+3(6)= 5+18=23
Thus , in 6 weeks , the kitten weighs 23 ounces.