A company manufactures steel pipes for use pumping fluids. For each millimeter of thickness, a pipe can support 2 pounds of pressure. How many millimeters thick should a pipe be in order to support 20 pounds pressure? 5 mm
10 mm
15 mm
20 mm

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?