A group of 68 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 67 others? The total number of fist bumps exchanged is nothing.

Solve the system of equations. - 4x + 1ly = 15 x = 2y y=

What is the solution to - 3.1x+7-7.4x=1.5x-6 (x-3/2)

Is there a square made up of square tiles that has only 75 squares overall? What about one that has 120 squares overall? If it is possible show the square design and explain how u found it. If it is not possible explain why that design cannot exist

5x+2 (x+9) = x+4x+43 How do you solve this?

Maya is baking cakes for a bake sale. She can bake 3 cakes in 2 hours. What is Maya's rate in hours per cake?

How I can simplifying 28x13x25

Harry measured two angles in a triangle with a protractor. The first angle measured 68 degrees, and the second 80 degrees. What is the measure of the third triangle

How do you get-4 to 4 How do you get - 4 to 4

Malinda's pair of ski boots and skis have a mass of 6 kilograms. What is the mass of one ski boot and one ski

Graph each equation using its given form. a. y=4x+2 b. y = - 1/3x-5 c. y+1=3/4 (x-8) d. y-4=-2/3 (x-6)