There are four red bicycle helmets in a bin. If a helmet is selected without looking, what is the probability that the helmet is red?

A 1/4

B 1/3

C 4/4

D 3/4

AB is tangent to circle O at A. The diagram is not drawn to scale. if AO=21 and BC=14, what is AB?

The radius of a circle is 5 feet. What is the angle measure of an arc bounding a sector with area 10 square feet

Ratio of measures in a triangle are 8:3:4 find the measure of the angles

A Gatorade cooler has 36 cups of water if a serving is three over four of a cup how many servings are in the cooler

Heidi hikes two trails, the Big Trapezoid and the Little Trapezoid. The shorter base of the Big Trapezoid is 2 mi long, while the longer base is 8 mi. The longer base of the Little Trapezoid is 4 mi long. The trails are similar shapes.

The amount of mice that survive a new cancer treatment can be modeled by y = 14 • 0.25x. Determine which number represents the original amount of mice.

Factor completely 6xy^3-24x^3y

Use the rules for multiplication by powers of 10 to calculate 3 times 100

How do you solve k in V = 3k/t

Whats 100 times 1,002 times 54