Is - 21 a rational number

Solve for x 3x + 8 = 41

It costs $20 a month to buy a cell phone plan. In addition, you will have to pay $0.10 for every call. How many calls can you make in a month for $25

A book had a length of 5 inches and a width of 10 inches. What is the area of the book?

Determine if the equation defines y as a function of x: y2 = x2. yes or no

What happens when you reflect a shape over the x-axis and then the y-axis. What is the one transformation that could have been performed to achieve the same result? A degree rotation.

What is 2 (x - 1/2) = 3 (5-2x)

A. Dalton's cell phone provider charges $0.15 for each text message over his plan's limit. How much will they charge Dalton for 125 messages over his limit? B. Why does this charge show up as a negative number on his bill?

Ed fills his water bottle with 1.2 liters of water. After his bike ride, he drinks 200 millimeters of the water. How much is left in Ed's water bottle.

A door wedge is 5 cm tall. Its has 3.7 cm high triangular bases with 2 congruent 5 cm sides and a 4 cm side. What is its surface area?

John asked the players on his hockey team their height in inches and listed the results below. What is the range of the data set? Round to the nearest tenth when necessary 76, 72, 70, 68, 72, 62