A+B=21

A-B=9

Aflati cat este A si B

What is the value of y so that the ordered pair (2, y) is a solution to the equation 2x+y=-2? A. -6 B. -2 C. D. 0

Solve the system by the elimination method. Check your work. 3a + 5b - 7 = 0 a - 2b - 4 = 0

Evaluate 3.09 : - 0.5

If it is 5 degrees outside, and the temperature will drop 12 degrees in the next six hours, what will the temperature be in six hours?

If 3x-13=8, find the value of - 4?

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.