solve expression

Question

Barry has $30. He spends $9 for lunch. Puzzle magazines cost $4.50 each. Which graph shows how many puzzle magazines Barry could buy?

Answer 1

Setup an equation in the form of y=m*x.

Where y is the amount of money Barry has minus what was spent on lunch,

m is how much each puzzle magazine costs,

and x is how many puzzle magazines Barry can buy.

Remember that Barry can only buy whole magazines,

so if you get a decimal round down to the nearest whole number.