What are two number that multiple up to -9 and add to 8?

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?

What is the point slope form of a line with slope -5 that contains point (2,-1)