A radio station runs a promotion at an auto show with a money box with 15 $100 tickets, 13 $50 tickets, and 12 $25 tickets. The box contains an additional 20 "dummy”tickets with no value. Three tickets are randomly drawn. Find the probability that all three tickets have no value.

What kinds of numbers have an odd number of factors?

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

Which expression is equivalent to 3^3 + 2^2?