Solve the problem A radio station claims that the amount of advertising per hour of broadcast time has an average of 15 minutes
and a standard deviation equal to 1.6 minutes. You listen to the radio station for 1 hour, at a randomly selected
time, and carefully observe that the amount of advertising time is equal to 8 minutes. Calculate the Z-score for
this amount of advertising time.
Select one:
A. 0.43
B.-4.37
C.-11.2
OD. 4.38

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

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.

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?