Event tickets cost $20 each. a student ordered some tickets online. there was a service charge of $2.50 per ticket. the total cost was $540. (a) write a function rule for the cost of number of tickets. (b) how many tickets did the student order?

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

What fraction is equivalent to 0.46464646··· a. 46⁄999 b. 46⁄100 c. 46⁄99 d. 23⁄50