Which equation results from adding the equations in this system? Negative 2 x + y = 8. 5 x minus y = negative 5.

2,6,3,9,6,18 what is the 10th term

How do u do this problom 4-2+[3x2 - (4-2) ]

How to simplify and rewrite the equation in descending powers of the variable "3 х - х² + 2 = Ч"

The legth of a rectangle is three centimeters less than twice its width. if the perimeter of the rectangle is 18 centimeters, find its dimensions

Eighteen more than twice a number is 8. Solve for the variable

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.