When John bought his new computer, he purchased an online computer help service. The help service has a fee of $25.50 and a $10.50 charge for each help session that he uses. John has budgeted $170 for the computer help service. What is the maximum number of sessions he can use? Write and solve an inequality to find the maximum number of sessions he can use. Show your work.

The heaviest 16% of all men in weight weigh more than how many pounds ?

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.

(a.s."similarity in right triangles"solve for xa.) 10b.) 20c.) 14.5d.) [tex] 6\sqrt{3} [/tex]