Complete the equation of the line through (1, 4) and (2,2)

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?

Margaret is purchasing a house for $210,000 with a 15 year fixed rate mortgage at 4.75% interest she has made a 5% down payment the house is valued at 205,000 and the local tax rate is 3.5% homeowners insurance 600 per year what are her total monthly payment