A stack of boards is 21 inches high. Each board is 1 and 3/4 inches thick. How many boards are there?

Jennifer is the owner of a video game and entertainment software retail store. She is currently planning to retire in 30 years and wishes to withdraw $14,000/month for 20 years from her retirement account starting at that time.

The number of boys in the classroom is three more than the number of girls if there are 19 students how many are boys and how many are girls

What is a simplified expression for 11 (3p+5x) + 4x-x

If you travel at a rate of 45 miles per hour how many minutes will it take to travel one mile

Name the multiplicative identity if - 12i

Two systems of equations are shown. The first equation in system B is the original equation in system A. The second equation in system B is the sum of that equation and a multiple of the second equation in system A.

Whats the formula of 90 degrees

Which shows the decimals 23.46, 23.17, and 25.1 written in order from greatest to least?

823 rounded to the nearest ten

Marcia has a 25-year adjustable rate mortgage with a rate of 4.2% for the first 3 years. The monthly payment is $1,805.46. The amount of the mortgage is $335,000.