Answer
\$4.10
Work Step by Step
Subtract the cost of the goods from the amount paid to find the change received.
amt pd$\ \ \ \ $cost of rope$\ \ \ \ $cost of wire
$\overbrace{(5)(3)} - \overbrace{(16.5)(0.47)} - \overbrace{(3)(1.05)}$
= $15 - 7.755 - 3.15$
= $4.095$
*Note - since this problem is working with money, round the result of to the nearest cent.