each person at a party shook hands with everyone else exactly once there were 66 handshakes how many people were at the party

What is the least common denominator of five and three

An unfair coin with Pr[H] = 0.2 is flipped. If the flip results in a head, a marble is selected at random from a urn containing six red and four blue marbles.

Larinda cooked a 4-kilogram roast. The roast left over after the meal weighed 3 kilograms. How many grams of roast were eaten during that meal?

Sean says that to add a number to - 100 and still have - 100 is to add zero. candice says that she can add two numbers to - 100 and still have - 100 who is correts and why

How many variable terms are in the expression 3x^y + 5x^ - 4y + z + 9? (Input a numeric value only)

Is 3 a factor of 16c-8d?

The square root of 59

Whats the rule of adding integers with the same sign

How do I turn - 6.3 into a fraction?

Lawrence's father gave him 200 baseball cards. Each week, Lawrence purchase 25 baseball cards to add to his collection.