In a class of 21 students, 7 students do not own a gaming system. At this
rate, in a class of 63 students how many students would be estimated to
not own a gaming system?

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

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%

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same