Question

A construction contractor received two deliveries of building supplies from a lumberyard. The two deliveries included 10 boxes of nails, which cost a total of $110.

Answer 1

Missing question:
Determine n, the cost per box of nails.

Solution;
n = Total cost/Number of boxes
Total cost = $110
Total number of boxes in the two deliveries = 10 boxes.

Therefore,
n = $110/10 = $11