Each month, the charge for a racquet club membership consists of a flat fee of $15, plus $3 each time equipment is rented. Which of the following equations represents the total monthly charge, M(r) dollars,
for the membership as a function of the number of times equipment is rented, r ?
A. M(r) = 3(15)r
B. M(r) = (3 + 15)r
C. M(r) = 3r + 15
D. M(r) = 15r +3
E. M(r) = r +3+15

I think its B (I'm so sorry if its wrong)

Step-by-step explanation:

it's $15 a month plus $3 every time u go, so you add those two numbers.

You dont know r, but u have to multiply it.

answer: y=0 if that is what u r looking for

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm