If one zero of the polynomial (a^2+9) x^2+13x+6a is the reciprocal of the other, find the value of a.

Find all solutions for a triangle with a=14 b=12 B=90

You have a rack that can hold 30 CD's. You can fit 7 more CD's on the rack before the rack is full. Which equation models this situation appropriately, where x represents the number of CD's?

After you measure the dimensions of a plot of land with a steel tape on a hot day, you come back and re-measure on a cold day. On which day do you determine the larger area for the land?

How does 5,071 make 8,158

Discounts and markups

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.