Pt. A- Joe bob G gallons of gasoline for $2.85 per gallon and sea cans of oil for $3.15 per can. what expression can be used to determine the amount Joe spend on gasoline and oil.
Pt. B- joe spent $15. He bought w cans of oil. About how many gallons of gasoline did he buy?
A- 2.5
B-3
C-3.5
D-4