The scatter plot below shows thr numbers of customers in a restaurant for four hours or dinner service on two different saturday nights. the line shown models this relationship, and x=0 represents 7 p. m.

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%

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost