A tree casts a 20-foot shadow. Brian is 6 feet tall and casts a 4-foot shadow.

How tall is the tree?

A rubber bal falls from a height of 10 meters on the ground and rebounces vertically to half the height that it falls from in each time it rebounces up. find the sum of the distance which the ball covered

Find an equivalant expression for the following squares of binomials. (5x+1) ^2

On a snorkeling trip, Antonia dove at least 7 times as deep as lucy did. If Antonia dove 35 feet below the oceans surface, what was the deepest that lucy dove?

Is - 2.2675 a irrational number?

11x - 24 = - 2 algebra equation

What is the word form for 13,406

Which expression has a value that is equivalent to 5n + 13 when n = - 5 I think its 4n + 8?! I'm not shure tho A. n² + 13 B. 4n + 8 C. 2n + 2 D. n + 8

Shirley is drawing triangles that have the same area. the base of each triangle inversely with the heigh. what are the possible base and height of a second triangle if the first triangles base is 12 and its height is 8. select one: a. 120 and 80 b.

45x - 15 Factor out the gcf of the following expression

Molly says that 4/8 is always the same 1/2. Andrew says that 4/8 and 1/2 are equivalent fractions, but they could be different amounts.