There are 30 people at a meeting, They each shake hands with everyone. How many

handshakes were there? Hint: Think "The number of combinations of 30 people at a

meeting giving handshakes to each other 2 at a time."

How do you write an exact angle measure without approximating to a decimal value?

what is 3m * (2m) ^2 + 3 (2m) ^3?

How many pennies does it take to make $20?

The distance from carries house to the park was 3/4 of a mile. Carrie walked 2/3 of the way before she stop for a drink. How far had carrie walked?

Arrange the following in increasing order 8.08 8.081 8.09 8.008

What is 95% closer to 85% or 100% when rounding?

What is 5 4/9 + 2 15/36 as a whole or mixed number?

Order of operations - usually, one egg is released each month during a female's reproductive years. If menstruation begins at 12 years of age and ends at 50 years of age, calculate the number of eggs her body can release during her reproductive

Rational number 7/3 has terminating decimal

The price of the bike that Ali wants to buy is $525. How much will Ali pay for the bike if the state tax rate is 5%