There are n airthmetic means between 4 and 24. If ratio of third mean to the last mean is 4 : 5 then find the number of terms in the series. ​

What is the perimeter, p, of a rectangle that has a length of x + 8 and a width of y − 1? p = 2x + 2y + 18 p = 2x + 2y + 14 p = x + y − 9 p = x + y + 7

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

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer