Show that the sum, over the set of people at a party, of the number of people a person has shaken hands with, is even. assume that no one shake his or her own hand.

Solving using substitution and/or elimination method - 5x+6y=-8; x-4y=24

Joshua is hiking glacier national park he has now hiked a total of 17km and is 2km short of being 1/2 of the way done with his hike

2.8y + 6 + 0.2 y = 5y - 14

Started at 15° and dropped 4° each minute what is the slope

7/10 pound of chicken split 3 ways

Tammy needs to make a total of 60 deliveries this week. sao far she has completed 42 of them. what percentage of her total deliveries has Tammy completed?

Carter can swim 25 yards of freestyle in 19 seconds. what is his speed in yards per second? at this rate, what is his speed in yards per minute

What is 6 less than 5 times a number? a. 5x - 6 b. 5 * 6 c. 5x 6 d. 5 : 6

An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 200 engines and the mean pressure was 5.4 lbs/square inch. Assume the standard deviation is known to be 0.8.

Carson wants to install wallpaper on the wall in his bedroom with the shape and dimensions shown below. To determine the area of the wall, he divides it into a triangle and a rectangle.