What inequality represents the verbal expression, all real numbers less than 69( a. x< is or equal to 69)(b. x > is or equal to 69)(c. x is > than 69)(d. x is < than 69

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?