The answer for this answer would have to be C. 6 multiplied by weeks(x) then add 9.
Commission is 6.5% since its a percent you want to convert it into a decimal so you want to divide by 100 : 6.5/100=0.065.
now since its a decimal you want to times it by how much she made:
4,800*0.065=312 hopefully this helps.
x/5 + 9 = 7
We can multiply both sides by 5:
x + 45 = 35
x = -10
16 cm -10 days
1 cm --- x days
x=1*10/16=5/8=0.625 days
Answer: C(x) = 3x + 3
<u>Step-by-step explanation:</u>
C(x) = mx + b
Given: when x = 3 hours, C(x) = $21 total charge, b = $3 skate rental
21 = 3m + 3
18 = 3m
6 = m
Answer for any given x is: C(x) = 3x + 3
