A digital media company is ordering booklets to promote their business. The manufacturer charges $0.50 for each booklet when 50 or fewer are ordered, $0.45 for each booklet when 51 to 100 booklets are ordered, $0.40 for each booklet when 101 to 250 booklets are ordered, and $0.35 for each booklet when 251 or more booklets are ordered. A $10 shipping charge is added to each order, regardless of the size of the order. Write a piecewise-defined function describing the cost of ordering booklets:

Let x be the number of booklets ordered:

What is the cost of purchasing 290 booklets?
$

What is the cost of purchasing 75 booklets?
$

What is the cost of purchasing 132 booklets?