Answer:
First, we need to calculate the total cost of car insurance for six months:
Mr. Jones' insurance = $160
Mrs. Jones' insurance = $290
Total insurance cost for six months = $160 + $290 = $450
To find the monthly cost, we divide the total cost by 6:
$450 ÷ 6 = $75
Therefore, the answer is A. $75. They should budget $75 per month for car insurance.