A guitar cost $26.75 after tax. if the selling price is $25.00 what was the sales tax

Given: DE || BC. Find the measure of AED in the triangle AED.

This rectangular prism is cut by the plane shown. The plane is perpendicular to the base of the rectangular prism. What is the shape of the cross-section?

Blake has 3 cakes that he wants to divide evenly amongst his classmates. If he wants to give each classmate 1/5 of a cake, how many classmates does he have enough cake for?

A 20 foot ladder is leaning against a house. It touches the ground 12 feet from the house. How far above the ground does it touch the house?

Find the product - 3x (-8x^2+5x+3)

How do you find an explicit formula?

Match each polynomial function with one of its factors. 1. f (x) = x3 - 3x2 - 13x + 15 2. f (x) = x4 + 3x3 - 8x2 + 5x - 25 3. f (x) = x3 - 2x2 - x + 2 4. f (x) = - x3 + 13x - 12 Pairs 1. x - 2 2. x + 3 3. x + 4 4. x + 5

Tell whether each equation represents a direct variation. if so, identify the constant of variation. 1. y=4x+9 2. 2y=-8x 3. x+y=0

Determine if the set of ordered pairs is a relation or a function. { (-1,2, (-2,1), (-3,0), (-4,-1) } neither function relation

11 + 1 + 0.01 + 0.11 + 0.111 = ? A. 12.231 B. 15.21 C. 12.222 D. 13.23