A semicircle has a diameter of 18 centimeters. What is its area? (Use 3.14 for pi)

Sarah and noah work at read on bookstore and get paid the same hourly wage.

What is the value of x? x + 5/8 = 6 Enter your answer in the box in simplest form.

Solving one-step Equations n + (-28) = 0

Darragh has a Golden Eagle coin in his collection with a mass of 13.551. An uncirculated Golden Eagle coin has a mass of 13.714g.

Lamar purchased n notebooks. They were 5 dollars each. Write an equation to represent the total cost c that Lamar paid.

Find the volume of a right circular cone that has a height of 9.5 m and a base with a circumference of 10 m. Round your answer to the nearest tenth of a cubic meter.

Function notation (2)

Is (2, 5) a solution to this system of equations? x + 2y = 12 2x + 2y = 14 yes or no

Given the system of linear equations. Choose all of the options that could be used to solve the system using addition x + y = 7 2x + y= Multiply the first equation by - 1 and add the equations together.

A father is 60 years old and his son is half his age. how old was the boy when his father was four times his age?