Cell phone company Y charges a $10 start-up fee plus $0.10 per minute, X. Cell phone company Z charges $0.20 per minute, X, with no start-up fee. Which function represents the difference in cost between company Y and company Z? A. F(x) = -0.10x-10
B. F(x) = -0.10x+10
C. F(x) = 10x-0.10
D. F(x) = 10x+0.10

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

Which graph represents the parent function of y=(x+2)(x-2)

Are the corresponding angles congruent? explain why or why not.