Solve the problem.Jim has gotten scores of 86 and 69 on his first two tests. What score must he get on his third test to keep an average of 80 or greater?

Solve the problem.The distance D, in feet, it takes a car travelling at x mph to come to a full stop after hitting the brakes is given by What is the stopping distance for a car travelling at 50 mph?

Graph using the slope and the y-intercept.2x – y = -6

Subtract.(5×7 – 16×5 – 11) – (-11×5 + 9×7 – 14)

Solve using the addition principle. Graph and write set-builder notation for the answer.f + 12 < 17

Find the slope of the line.3x – 5y = 26

Express using positive exponent. Then simplify.

Find the slope of the line.3x – 5y = 26

Find an equation of the line containing the given pair of points.(-6, 2) and (7, -5)

  Let marginal benefit be MB and marginal cost be MC. What condition holds at the output q* that maximizes our consumer surplus (\pi)?