a cellphone store sold 450 newly released cell phones in three hours. this was 30% of the number of phones sold that day. how many newly released cellphones did the phone company sell that day?

The perimeter of the rectangle is 30 inches. What is the formula that shows the length of side c?

A triangle has sides with lengths of 8 millimeters, 11 millimeters, and 12 millimeters. Is it a right triangle?

A rectangular prism has a volume of 40 cm cubed. The height of the prism is 8 cm. The length is 4 cm longer than the width and the width is x cm. Find the dimensions of the prism

Identify the terms coefficients and constants 7h plus 3

63 is 63% of what number

A recent study showed that women who lived near a freeway had an unusually high rate of rheumatoid arthritis. Sarah said, "They should move away from freeways." Select the correct fallacy in Sarah's reasoning?

A proportional relationship is represented by the equation 2x=18y. if x is proportional to y, what is the constant of proportionality?

Step by step ways to solve 3.4 x 4.72

0.17098445595 to the nearest percent

Which one is bigger 0.7 or 7/9