Answer this and you’ll get brainlest

D 18

Step-by-step explanation:

Let r = red pens

b =5r

g = 3r

The total number of pens

r+b+g

Substitute

r + 5r+ 3r

Combine like terms

9r

The number of pens must be a multiple of 9

18 is a multiple of 9

c

step-by-step explanation:

there is vertical asymptote at x = 2 and x = 0

vertical asymptote occurs at the points where the denominator is 0. so we can say that

x = 2 occurs when there is a factor (x-2) in the denominator, and

x = 0 occurs when there is a factor "x" in the denominator

thus, the denominator of the equation would have "x * (x-2)", this is option c only. that's the correct answer.