F(x)=x^2+3 find and simplify f(t-5)
and f(a+h)-f(a) , f(a) - f(a-h)

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

What number is 7 units left of -15?

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?