How do I solve this problem and show my work? A group of 71 friends meet for lunch. They greet each other by exchanging first bumps. How many fist bumps are exchanged if each friend must bump with each of the 70 others?

Kia is at a prize machine that dispenses random toys. There are 15 prizes left. There are five bouncy balls, 3 toy cars, 2 stickers and 5 dinosaurs. Kia gets two prizes, what is the probability that he gets two cars? Is it A. 3/70 B. 3/75 C. 1/35 D.

A cross section is the intersection of a and a.

Substitute the values to calculate the compound interest. Principal: $90,000.00 time: 10 years rate: 6% number of compounding periods per year: 12 What is the total amount accrued? (principal and interest) Round the answer to the nearest cent.

What is the answer to 12x+6=18-48-9x

The planet mercury takes 56.6 earth days to rotate once about its axis. about how many times does it rotate about its axis during one earth year

Jaime wants to know how fast she can type, so she times herself as she types a paper. The paper has 442 words in it, and Jaime types it in 13 minutes. What is her typing rate, in words per minute?

How can one fourthx - 3 = one halfx + 8 be set up as a system of equations?

Chris invests $2,200 into three accounts that pay 6%, 8% and 9% in annual interest. He has three times as much invested at 9% as he does at 6%. If his total interest for the year is $178, how much is invested at each rate?

If AC = 12 and BC = 13, find AB.

How to Simplify 306/315