Consider a group of 20 people. if everyone shakes hands with everyone else, how many handshakes take place?

Determine wether the graphs of y=3x+5 and - y=-3x-13 are parallel, perpendicular, coincident, or none of these

2. Given f (x) = 3x - 5 and g (x) = x + 2, find f (x) * g (x) or (f*g) (x) My answer is 3x^2 + 5x - 10

2y=5x+8 in standard form

Cody was 165/,/text{cm}165cm165, space, c, m tall on the first day of school this year, which was 10/%10%10, percent taller than he was on the first day of school last year. How tall was Cody on the first day of school last year?

How do you solve 4 (3x-5) using "distributive property" and "combining like terms"

What is the domain of f (x) = 3^x

What is the solution to 0 = - 6n

A bike sickle us wrote a distance of 3 miles in 18 minutes. what was the average rate of the bicycle is in miles per hour.

Over 6.8 months, a tree grew 7.48 inches. What is the tree's growth rate? Enter your answer in the box.

The equation of the circle whose center is at (2, 1) and radius is 3 is A. (x + 2) ² + (y + 1) ² = 9 B. (x - 2) ² + (y - 1) ² = 9 C. (x - 2) ² + (y - 1) ² = 3