Answer:
5.
Step-by-step explanation:
So 5x35 is 175. Divide by 35 and you get 5.
Answer:
x²-9=x²-3²=(x+3)(x-3)
Step-by-step explanation:
use formula
a²-b²=(a+b)(a-b)
Direct variation means their ratio is a constant
x/y is 9/45=1/5
so when x=2, y=5*2=10