An acute angles measure is
A. Between 0 and 90
B. Between 90 and 180
C. Exactly 90

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

Which system of linear inequalities is represented by the graph?

In a column proof the right column states your reasons