Read the following statement: if two angles are acute, their sum is never a straight line. the hypothesis of the statement is:

their sum is never a straight line.
two angles are acute.
if two angles are acute they are straight lines.
none of the choices are correct.

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π