If a 40 -foot tree casts a 12 -foot shadow, find the length of the shadow cast by a 21-foot tree.

You and two of your friends are in a group of 10 people. the group is randomly split up into two groups of 5 people each. determine the probability that you and your two friends are in the same group.

One equation in a system of equations is y=-3x-1 the system has an infinite number of solutions. What is the slope of another equation in this system M=-3 M=-1/3 M=1/3 M=3 M is slope

How do I find the perimeter of a triangle with sides 3ft 8in., 2ft 10in., and 4 ft?

What is 19.941 rounded to the nearest one?

Give the name (monomial, binomial, trinomial etc.) and degree of the polynomial. 5x2 + 7x - 3 Name? [?] Degree? [ ]

The density of apple juice is 1.04 grams per cm3. The density of fruit syrup is 1.6 grams per cms The density of sparkling water is 0.99 grams per cm3.

Is 40cm and 80cm a trangle

Solve y = x + 4 for x, Ox=y - 4 Ox=y + 4 Ox=-y + 4 Ox=-y - 4

Your business has two branch stores. The recent physical inventory reports that the merchandise value for each store is: Store A $454,385, and Store B $586,855. The merchandise book value for each store is: Store A $495,275, and Store B $615,225.

Angle A & Angle B are supplementary. The measure of angle B is 3x the measure of angle A. Find angle A & angle B. How?