The difference of 20 and a number is at least 15

2x^{2} + 4x+1=0 Solve for x.

Describe two ways to find the maximum area for rectangles with a fixed perimeter

Last week jackson babysits 1 1/2 times as many hours as he babysat this week. last week jackson babysat 12 hours. how many hours did he babysit this week?

Terry drove 366 miles in 6 hours at a constant speed. How long would it take him to drive 427 miles at the same speed

Find the value of x. (2x + 30°

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.