How to know if a quadratic is a perfect square?

Factor completely. -2k - k 3 - 3k 2 A: k (-k + 1) (k - 2) B: - k (k - 1) (k - 2) C: - k (k + 1) (k + 2)

A video game system and several games are sold for $540. the cost of the games is three times as much as the cost of the system. find the cost of the system and the cost of the games.

The product of two consecutive even integers is 10 less than 5 times their sum. find the two integers

How do you write 5 13/20 as a percent

Looking at the scatterplot of pages versus amazon price, it appears that the data might be clustered around two separate regression lines. what is the cause of this split in the data?

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.