X^2-5x-9=0 has only 1 solution true or false

Donald bought a box of golf balls for 9.54 dollars. there were 18 golf balls in the box. about how much each golf ball cost

After school craft center has 15 boxes of 64 crayons each. In 12 boxes 28 of crayons have not been used. So how many crayons have been used altogether?

Whats answer to someone stole $100 from my store

Simplify the following expression.* (3p+8p - 2p) + (6p * + 7 - p?)

Does it matter what order you add the numbers in a problem? explain how chips and numbers lines support your answer.

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.