Answer:
$32
Explanation:
To estimate, you first need to round.
7.8 rounded to the nearest whole number is 8.
You then need to find the cost per pound for the potatoes. That is $3.89.
3.89 rounded to the nearest whole number is $4.00.
You then multiply 8 x 4.
8 x 4 = 32.
32 = $32