A group of 67 friends meets for lunch. They greet each other by exchanging fist bumps. How many fist bumps are exchanged if each friend must bump with each of the 66 others?

What is |88| - in absolute value and opposite integers?

Nine percent of men are color blind. Researchers need at least 60 men with this trait, so they randomly select 700 men. Estimate the probability that at least 60 color-blind men are in the sample.

A school choir needs to make T-shirts for its 75 members and has set aside some money in their budget to pay for them.

Find the sum and express it in simplest form. (3a2+2a) + (5a2-a-7)

John and Ling start their new jobs on the same day. John's schedule is 4 workdays followed by 1 day off. Ling's schedule is 7 workdays followed by 2 days off.

What is the slove system of linear equation by elomination of 8x-5y=11 and 4x-3y=5

If the parent function f (x) = x is modified to g (x) = 2x^2 + 1, which statement is true about g (x) ? A. It is an even function B. It is an odd function C. It is both an even and an odd function D. It is neither an even nor an odd function

Choose the smallest set of which {5,2,23} is a subset

Round both numbers to the nearest whole number and estimate the result 6.8*7.9, 7.6*7.5, 0.9*44, 0.2*44

The sum of a 3-digit number and a 1-digit number is 217. the product of the numbers is 642. if one number is between 200 and 225, what are the numbers