The base of the rectangular pyramid shown has an area of I Msquare inches
A triangular face with a base of 10 inches has an area
of My square inches.
A triangular face with a base of 5 inches has an area of
M square inches.
The total surface area of the pyramid is
square inches.

Evaluate the expression for the given value of the variable 7a - 4a for a =8

Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers. a) one of the 400 passengers is selected uniformly at random. let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7