The estimated costs for remodelling the interior of an apartment are: three 1-gallon cans of paint at $15.44 each, two paint brushes at $12.22 each, and $145 for a helper. The total estimated cost with the appropriate significant figures is $________. A)215.76 B)2.2 × 10² C)216 D)2 × 10² E)215.8

Question

Quizplus · Accepted Answer

Three 1-gallon cans of paint at $15.44 each will cost a total of $46.32 (3 x $15.44 = $46.32). 
Two paint brushes at $12.22 each will cost a total of $24.44 (2 x $12.22 = $24.44).
Adding these two costs, we get: $46.32 + $24.44 = $70.76
Adding the cost of the helper, we get: $70.76 + $145 = $215.76 
Since we are asked for the appropriate significant figures, we round this to $216, making the answer C.

The Estimated Costs for Remodelling the Interior of an Apartment