Solve the following word problems.
Trisha purchased 3 blouses at $32.50 each, 2 packages of 6 pairs of
socks costing $7.50 per package, and 4 pair of hosiery costing $2.19
each. Sales tax was 6.5%.
72. How much sales tax did Trisha pay?
73. What was Trisha's total invoice including tax?