if there are 6 people at a party. if each person must shake hands with every other person at the party exactly once, how many handshakes will there be?

A right triangle has one angle that measures 85°. what is the measure of the other acute angle?

A bag contains 1 red, 4 green, 5 blue and 10 yellow balls. What is the chance on a probability number line that none of the balls drawn is red?

6km in 2 hours as a rate in simplest form

800 shared into the ratio of 9:13:18

2. Why does the sin Ɵ = cos (90 - Ɵ) ? Show steps

Find the GCF 1. 20 and 60 2. 81 and 27 show you work

What is the product of 38x$12

Which of these is the statement of the zero product rule? A. If a • b = 0, then either a = 0 or b = 0, but not both. B. If a • b = 0, then a = 0 and b = 0. C. If a • b = 0, then a = 0. D. If a • b = 0, then either a = 0 or b = 0, or both.

What is the area of a circle with a diameter of 14 meters? Use 22/7for pi.

A phone company surveys a sample of current customers to determine if they use their phones most often to text or use the Internet. They sort the data by payment plans, as shown below.