Question

If a medium pizza costs $5 and a large pizza is $8, write an equation in standard form that models the possible combinations of you have $40. (Let m=medium and l=large.)

Answer 1

NEVER use a lower case L as a variable
.
$5M+$8L=$45
.
Medium only:
$5M+$8(0)=$45
$5M=$45
M=9