Answer:
what's the question?
Step-by-step explanation:
Answer: 16
Subtract her age by her son’s age
42
(0, -[)
a 3² +4² = 25 the factors are 5²
b 8²+6²= 100 the factors are 5²and 2²
c 12²+5²= 169 the factors are 13²
d 8²+15²= 289 the factors are 17²