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

Two lines parallel to the same plane are parallel to eachother

Joanie wrote a letter that was 1 1/4 pages long. katie wrote a letter that was 3/4 page shorter then joagies letter. how long was katies letter

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell