Hence find the values for x and y which satisfy both the equations y=-3x-21and y=5x+43

If 18 inches is equal to 1 1/2 feet, how many feet long is a 36 inch board? A 72 inch board? A 144 inch board?

A number n plus 8 is greater than 11? What is the inequality and the solution?

Two missiles speed directly towards each other, one at 9,000 miles per hour and the other at 21,000 miles per hour. They start at 1,317 miles apart. How far apart are they one minute before they collide?

Determine the domain of f (x) = x + 90

Sarah has $20 saved. She gets $10 per week for her allowance, and she saves her allowance for the next 3 weeks. At the end of the week, she gets $150 in birthday money. How much money will she have after the 3 weeks?

With the substitution method which variable do you solve for first?

Theo has $5 more than denise and denise has $11 more than rudy. Together, they have $45. How much money does denise have?

Identify the factors of the terms of expression 5+6a+11b

Sarah spent 1/3 of her monthly budget on food and 3/4 of her monthly budget on gasoline. Sarah has gone over budget and has spent $221 on food and gas. What is Sarah's monthly budget?

What is 50,935 divided by 5?