If nine people are in a room and every person shakes hands exactly once with each of the other people, how many handshakes will occur

Jodi is cutting out pieces of paper that measures 8 1/2 inches by 11 inches from a larger sheet of paper that has an area of 1000 square inches. What is the greatest possible number of pieces of paper that Jodi can cut out of the larger sheet?

Find the derivative of the function. y=x^2lnx^2

Write the expression for the perimeter of rectangle with a length that is 4 centimeters longer than three times it's width.

Tricia listed her assets and liabilities. Credit Card Bill Car Loan Bonds Piano Bank Account Bicycle Which are Tricia's liabilities? Select two choices ... credit card bill car loan bonds piano bank account

Simplify 20 radical 16

Travel Ez sells dollars at a rate of ($1.40) / (1 euro) and buys dollars at a rate of ($1.80) / (1 euro). At the beginning of a trip, Sophie exchanged $540 to get 300 euros.

What is the range of y = square root x+7+5?

Is to a solution of the equation 3x+6=6x?

What would - 9 1/2 be as a decimal?

Write the inequality that represents "-5o is warmer that - 8o." (o=temperature)