a store is having a sale on shirts. the sale is buy one shirt, get one 50% off. the original price of one shirt is $20.48. micha bought several shirts, and the total cost was $81.92. how many shirts did micha buy?

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

because they could drop even lower..

see below

step-by-step explanation:

x+2> 6

subtract 2 from each side

x+2-2 > 6-2

x > 4

there is an open circle at 4 since is it is greater than and the line goes to the right