B) 2x + 7 = 4x - 1, x = 4

If 12 lightbulbs are sampled, what is the probability that no more than 1 sampled lightbulb will fail before the advertised life-span?

A contractor is pouring a concrete driveway. The perimeter is 108 ft. What length will the driveway be if the width is 14 ft.?

Translate this phrase into an algebraic expression. 51 decreased by twice Vanessa's score

Julio is building a ramp for a bike competition. He has two rectangular boards. One board is 10 meters long and the other is 8 meters long. If the ramp has to form a right triangle, what should its height be?

60 feet is to 50 feet as 30 feet is to 25 feet.

In the equation 52y = 104, what is the next step in the equation solving sequence? Solve for the variable. Isolate the variable using inverse operations. Combine like terms. Move all numbers without a variable.

What graph represents the function f (x) = x3 - x2 - 10x - 8?

What has more sides a hexagon or a pentagon

Find the unit vector in the direction of (-6, - 7)

If the hydrogen ion concentration [H+] of an aqueous solution is 1 x 10-9, what is the pH?