Answer:
A and C
Step-by-step explanation:
<h3>A</h3>

<h3>C</h3>

It is a function, because it has the shape of an x^2 function.
You can find the unknown side length by using pythagorean theorem. a²+b²=c²
Simply plug-in numbers into the formula. Your answer is 80.
Answer:
0.75*(x)*(y)
Step-by-step explanation:
60 movies ------ 100%
9 movies -------- x%
__________________
60*x=9*100%
60x=900% |:60
x=15%
The answer is 15%
:)