Question

Last week, Sally bought 8 ½ gallons of

gas at $2.30 per
gallon. This week, she bought 4 ½ gallons at $2.20 per
gallon. What was her total cost?

Answer 1

her total cost is $29.45

Explanation:

last week - 8 1/2 gallons times $2.30 = $19.55

this week - 4 1/2 gallons times $2.20 = $9.90

$19.55 + $9.90 = $29.45