Simplify each expression
(7n + 8)

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5