What is the perimeter of a regular nonagon with a side length of 21

What is 540 divided by 36 and explain

Bethany can mow her family's lawn in 4 hours. Her brother Colin can mow the lawn in 3 hours. Which equation can be used to find the number of hours, x, it would take for Bethany and Colin to mow the lawn together?

Find the solution for these systems of equations 2x+3y=-7 4x-3y=-23

At Cheng's bike rentals, it costs $34 to rent a bike for 7 hours. How many hours of bike use does the customer get per dollar?

Y^2=4-x^2 determine whether the equation defines y as a function of x

Clarke borrows $16000 to buy a car he pays simple interest at an annual rate of 6% over a period of 3.5 years how much does he pay all together?

The length of a rectangle is 1 ft more than double the width, and the area of the rectangle is 45 ft2. find the dimensions of the rectangle.

Each minibus seats 14 people, and the school owns 5 minibuses. Use mental math to find how many students can ride in the school's minibuses at the same time. Show your work.

Find the x and y intercepts of 8x 4y=56

Factor completely x2 - 10x + 25. (x - 5) (x - 5) (x + 5) (x + 5) (x + 5) (x - 5) (x - 25) (x - 1)