A gym membership has an application fee of $5 plus $20 per month. Which function represents the cost of a gym membership, where x is the number of months? Question 9 options:

A)

f(x) = 20x + 5

B)

f(x) = 5(20)x

C)

f(x) = 5x + 20

D)

f(x) = 5x2 + 20

c

Step-by-step explanation: always go with c, no matter what

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.

a+b=c is your answer