Andre sells T-shirts. He charges customers $19 per T-shirt, plus a delivery fee of $8 per order. The amount, y, that Andre charges for an order of x T-shirts is represented by the equation y = 19x + 8. A customer paid $217 for an order of T-shirts.
How many T-shirts did the customer order?

A 8 T-shirts

B 18 T-shirts

C 11 T-shirts

D 25 T-shirts

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Answer this question! 30 points and brainliest! only if you know the answer.

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.