There are 5 people at a party. each person must shake hands once with every other person at the party. how many handshakes does it take to do this?

What is the height of a square pyramid that has a volume of 32 cubic feet and a base length of 4 feet

Which equation represents this sentence? Three less than the product of seven and a number is four more than the number. O7n - 3=n+4 0 3 - 7m = 3+4 o On - 3+4=n 0 3 - 7m+4=

1) How many solutions does this system have? Use substitution. y=2x+1 and 4x-2y=6 2) True or False. You cannot use substitution to solve a system that does not have a variable with coefficient of 1 and - 1.

What is the number or numbers that occur most frequently in a set of data

Round 416867.46988 to the nearest tenth

Michelle is making throw pillows to decorate her couch. She is going to make two square pillows that are each 2 feet by 2 feet and three triangular pillows that are 1 foot on each side. She wants to use the same trim around each pillow.

How do you solve this? 5 = log3 (x^2 + 18)

When a times a number is increased by 30, the answer is the same as when 140 is decreased by the number. Find the number

When you turn on a television, you transform electrical energy into___. choose all that apply. A) Heat energy. B) Light energy C) elastic potential energy D) Sound energy

How do you convert decimals to fractions