The school office aides are in charge of packaging up old textbooks from the book room to mail to the used bookstore. This year, the school received $600 in total for selling old math textbooks for $12 each and old paperback novels for $3 each. The school sold 71 math textbooks and paperback novels in all. How many old math textbooks did the school sell this year?

A. 12
B. 43
C. 600
D. 28

The answer is

→ B.) 43 old math textbooks

Step-by-step explanation:

How did I get the answer?

Well, I multiplied 12 by 43. Which is $516 dollars sold from old math textbooks. Then I multiplied 3 by 28. Which resulted is $84 dollars sold from paperback novels.

Add them together.

What I typed in using a calculator:

(12 x 43) + (3 x 28) = 600

Therefore, 43 old math textbooks sold this year.

Hope this helped!

Do you mind giving me brainliest? It is greatly appreciated!

if you was gonna solve for a, a is a   < -12