40%of what number is 28

Find the value of x 2x+4x=5

What is the equation of the line through (3,-1), (4,7)

What is the correct factorization of - 5x^2+9x+2

Solve for p: - 11=p-9

Select the correct answer. What is the solution to this system of equations? x - 2y = 15 2x + 4y = - 18 A. x = 1, y = - 6 B. x = 1, y = - 7 C. x = 3, y = - 6 D. x = 3, y = - 7

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.