Question

A community service group organizes a car wash that raises 7c – 18 dollars and a spaghetti dinner that raises 6s – 45 dollars. Which equation below represents the total amount of money raised?A.13cs – 63B.7c + 6s + 63C.7c + 6s – 63D.7c + 6s – 27

Answer 1

Add both expressions to find the total amount of money raised:

$\begin{gathered} (7c-18)+(6s-45)=7c-18+6s-45 \\ =7c+6s-18-45 \\ =7c+6s-63 \end{gathered}$

Therefore, the total amount of money raised is:

$7c+6s-63$