If you have 5 signal flags and you can send messages by hoisting one or more flags on a flagpole how many messages can you send

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

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