Answer:
The equation that represents the best estimate is
B. $0.40 × 30 = $12
The actual total cost of all the bolts is
$12.54
Explanation:
From the question given above, we know that
total bolts = 33
cost of 1 bolt = $0.38 approximating the values,
Total bolts = 33 ≅ 30
Cost of 1 bolt = $0.38 ≅ $0.40
Therefore,
Cost of all bolts = Total bolts x cost price for 1 bolts
= 33 x $0.38 = $12.54 ≅ $12.00
