Answer:
I would say 8.
Step-by-step explanation:
Using the Pythagorean Theorem, a2+b2=c2.
7^2+5^2=c^2
49+25=74
Now find the square roots of all numbers...
7+5= about 8.
Infinite solutions
i say d but i'm not fully sure
3 x10
3/10 = .3
it change it to 30%
Yes