Find the value of the expression 4a4 − 2b2 + 40 when a = 2 and b = 7.

6
39
74
202

Acircular hot tub located near the middle of a rectangular patio has a diameter of 48 inches. the patio measures 11 feet by 6 feet. what is the area of the patio that is not covered by the hot tub?

What is 32+4 x (16 x 1/2) -2 show your work}

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3