The pattern is increasing by 10 then a ding 1 to the next number. Hope this helps! :)
10×5 is the answer. not sure though
Answer:
The answer is 10x² - 4x.
Step-by-step explanation:
You have to apply Distributive Law,

So for this question :



15; it represents the one-time sign-up fee
The y-intercept can be found either on the graph where the line intercepts the y-axis, or b in the equation y=mx+b.
It represents the fee because it will be charged even if the number of months (x) is zero. 10 is the monthly fee because it is multiplied by x, the number of months.