What does it mean to say that a polynomial equation is solvable by radicals?

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?

The acceleration of an object due to gravity is 32 feet per second squared. what is acceleration due to gravity in inches per second squared?

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c