10 children attended a party, if all the children shake hands with each other, how many handshakes were at the party?

If you want to make a scale drawing smaller, what must you multiply by?

A line perpendicular to a reflecting surface is called the

How do you identify a quadratic trinomial?

Of f (x) = 5-1 and g (x) = 2x^+1, what is the value of (f x g) (-3)

Simplify 2 (x-1) + 3 (x+2) Simplify (4y-3) - 2 (y-5)

Ben wants to build a fence he has 22 yards of material his garden is 6 3/4 by 4 2/3 does he have enough material

Four brothers each bought two hot dogs and a bag of chips at the football concession stand. If the bag of chips was $1.25, and the total was $18.20, which equation can be used to find the price of one hot dog?

10. An unprincipled used-car dealer sells cars to unsuspecting buyers, even though the dealer knows that the car will have a major breakdown within the next 6 months. The dealer provides a warranty of 45 days on all cars sold.

At Jakes laundromat 6 of the washers must be replaced these washers represent 1/4 of the total number of washers if W represents the total number of washers which equation could be used to determine the value of w?

john has 3 red shirts, 4 blue shirts and 2 yellow shirts. what is the ratio of yellow shirts to blue shirts