Please help meee, at least answer question C The function C(r) =-2x?+38x + 40 models the sales, in hundreds of
millions of dollars, of compact discs for years since 1990.

Part A: rewrite the function to reveal when cells of compact discs are 0$

Part B: what are the zeros of the function?

Part C: use the context to interpret the zeros

The scatterplot represents the total fee for hours renting a bike. the line of best fit for the data is y = 6.855x + 10.215. which table shows the correct residual values for the data set?

If two points are given, then exactly one line can be drawn through those two points. which geometry term does the statement represent

Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true? abby will use a different formula for calculating the standard deviation. the outlier will increase the standard deviation of the data set. the spread of the graph of the data will not change. abby will not use the mean when calculating the standard deviation.