A room can be cleaned in 2 hours if rob and Harry work together. Ron could clean it in 3 hours. How long can harry clean it?

Systems of equations word problem. "Flying with the wind a plane went 183 km/h. Flying into the same wind the plane only went 141 km/hr. Find the speed of the plane in still air and the speed of the wind.

In ΔABC, if m = m, m = ß (where ß is an acute angle), and BC = x, which expression gives the length of b, the side opposite?

Ana drinks chocolate milk out of glasses that each hold 1/8 of a liter. She has 3/4 of a liter of chocolate milk in her refrigerator.

Find X -3/4 (x+2) = 6

The population of Foxville is about 12*10 to the third power people which is another way to write this number

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.