Simplify (x+2) (x^2-4x-9)

Evaluate the following: f (5) = - 4x2 + 5x - 1

A teachers age is 6 years greater than 2 times a students age. A principals age is 10 years greater than 3 times the students age.

True or false the value - 1is a lower bound for the zeros of the function shown below F (x) = x^4+x^3-11x^2-9x+18

The table shows the heights in inches of trees after they have been planted. What is the height of a tree that is 64 in. tall in its pot?

What is 3 (x-7x) - y and how do you do it?

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.