A store buys boxes of designer tile from a manufacturer at the wholesale price. Boxes can have anywhere from 16 to 20 tiles.
The wholesale price for a box of tiles is $3.50 per tile plus a flat fee of $20. Construct function W to model the wholesale cost of a box of t tiles.
To determine the retail price of an item, which is the store’s selling price, the store adds a 65% markup to the wholesale price. Construct function R to model the retail cost of an item m.
Use the functions from (a) and (b) to construct the composite function that can be used to determine the retail cost of a box of designer tiles.
Use the composite function from (c) to determine the retail cost of a box of 18 tiles. Show your work.
What is the practical domain and range of the composite function? That is, for this scenario, what are the possible inputs and outputs?