After a band parent meeting each of the ten members shook hands with each other once.

how many handshakes were there in all?

hint: remember that one hand shake involves two people

If r = 2 and s = 7, what is the value of |r| - |s|?

How many solutions dose this have y-5x=-6 3y-15x=-12

Anna babysits for $5 per hour. She has saved $25 from her birthday. Find h, the number of hours she needs to babysit in order to have $150. Write an equation that represents this situation and label the constant, coefficient, and variable.

Complete the statement. L=234 mL

How to write 3.020 as a fraction or a mixed number

Mittens, a baby kitten, gained 120 grams of weight in 1/3 of a month. If mittens kept growing at this rate how much would he gain in a month

What is 8 times as many as 4

The oblique rectangular prism has a length of 6 cm, a width of 8cm, and a height of 7cm. what is the area of the base and volume of the prism?

Six students took a national standardized test for which the average score was 700 and the standard deviation was 150. If a student's z-value is 1.75 on the test, what was the student's score?

Mary is driving on the highway. she begins the trip with 16 gallons of gas in her car. the car uses up one gallon of gas every 20 miles. write an equation