What is the quotient? x-1 divided by 7x2 - 3x - 9

all work is pictured and shown

$7.

Step-by-step explanation:

It is given that the printing company charges a certain amount for each shirt plus a setup fee of $40.

Let x be the cost of each t-shirt.

There are 21 students in the drama club. So, total cost of 21 t-shirts is

It is given that the t-shirt order costs a total of $187.

Divide both sides by 21.

Therefore, the cost of each t-shirt is $7.