You need to tile 17 kitchen floors in a new apartment building each floor needs 309 tiles how many tiles will you need for all the floors And explain

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?