Which is the best definition of a quadrilateral?

a. a parallelogram with 2 pairs of equal angles

b. a 4-sided polygon with no equal sides

c. a parallelogram with no equal sides

d. a 4-sided polygon

What is 3/7 reduce to its lowest term

One cell phone plan charges $0.08 per text and another plan charges $0.12 per text. What's the simplified ratio of the cheaper plan to the more expensive plan? A. 3:2 B. 8:12 C. 12:8 D. 2:3

Suppose an investment of $500 doubles in value every 15 years. How much is the investment worth after 30 years? After 45 years? Write an equation and solve

The perimeter of rectangle ABCD is 42 cm and the area is 80 cm2. Which equation can be used to find the dimensions of the rectangle? (Hint: Set up a system of equations).

Water is pumped out of a holding tank at a rate of 6-6e^-0.13t liters/minute, where t is in minutes since the pump is started. If the holding tank contains 1000 liters of water when the pump is started, how much water does it hold one hour later?

Solve by elimination 10x-5y=-25 - 2x+2y=0

A die is rolled 20 times. find the probability of getting four 2's out of 20 attempts

In the data set below, what is the upper quartile? 62 42 18 42 66 42 67 89 88 14 87 59

EStimate how many 12-ich rulers will be about the same length as a sheet of paper

Simplify the expression. Use the varbiables, numbers, and symbols that are shown. Drag them to the appropriate box in the polynomial. Use standard polynomial format. X (2x+3) + (x-3) (x-4)