A building contractor is building a backyard playground and wishes to put down rubber mulch to provide safety from falls. The contractor wishes to put the mulch in a pit in the shape of a rectangular solid 19 feetlong, 12 feetwide, and 6 inches deep.

a) Determine thevolume, in cubicfeet, of mulch the contractor will need. Whenappropriate, use the key on your calculator.

b) If mulch costs $9 per cubicfoot, what will the cost of mulchbe?