Add 15 to x to find y

How do I solve 3 (-7) -7 = - 7x-7x-7=?

4a-2=10 - (a+2) how do i solve this

How to get to 12 to 55

What value of c makes the polynomial below a perfect square? x2 + 16x + c c = A. 64 B. 32 C. 4 D. 256

If there are 210 student and only 46 students get a permission slip to holiday hills what is the percent of the student who did not receive permission slips?

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.