Answer:
Sheryl would pay $21
Step-by-step explanation:

add 9 on both sides so g=7
C.) 3 points because you can't have 2 points on the same y axis line.
Answer:
Step-by-step explanation: If the degree (the largest exponent) of the denominator is bigger than the degree of the numerator, the horizontal asymptote is the x-axis (y = 0).
If the degree of the numerator is bigger than the denominator, there is no horizontal asymptote.