There are 5 girls and 5 boys in a chess club. The club holds a round-robin tournament in which every player plays against every other player exactly once.

In how many games does a girl play against another girl?

Give two ways to write each alegebric expression in words m-9

Jon has to pay $7.50 admission for the skating rink and $1.50 per hour to rent roller blades how much would it cost to skate for 3 hours

Which of the inequalities represents the statement "the absolute value of the difference of x and y is greater than 5"?

4 (3a + 7) + 3 (2a + 5)

What is the slope of y = - 40x - 3?

Ali has $4.90 in his pocket, all in change. He has an equal number of quarters and dimes. How many does Ali have of each?

If Allison practices her violin 12 hours a week and practices three fourths of an hour each day and has already practiced 3 hours how many mor lessons does she have to got to to complete the 12 hours

Estimate the mixed number 20by rounding to the nearest whole number or one-half. 20 3/20 estimates to ...

What is x1/2 * x1/3 =

Adam drew two samw size rectangles and divide them into the same number of equal parts. He shaded 1/3 of one rectangle an 1/4 of the other rectangle. What is the west number of parts into which both rectángles could one divided