Roger lives in Orlando but just started a new job in Tampa. Every Monday he drives his car 95 miles from Orlando to Tampa, spends the week in a company apartment, and then drives back to Orlando on Friday. He doesn't use his car for anything else. After 20 weeks of this, his odometer shows that he has travelled 84,000 miles since he bought the car. 1.) Write a linear model which gives the odometer reading of the car as a function of the number of weeks since Roger started the new job.
f(x) = __x+__

2.) If he plans to buy a new car when his odometer reaches 100,000 miles, about when will Roger buy his car?
a.) about 104 weeks
b.) about 168 weeks
c.) about 120 weeks
d.) about 12 weeks

You have just applied, and have been approved for a $58,000 mortgage. the rate quoted to you by the lender is 6.1% for a 30 year fixed mortgage. determine how much of your third month’s payment goes towards the principal. $56.65 $56.93 $57.22 $57.51

Iknow the answer but the calculator doesn't seem to give the right one

The upcoming championship high school football game is a big deal in your little town. the problem is, it is being played in the next biggest town, which is two hours away! to get as many people as you can to attend the game, you decide to come up with a ride-sharing app, but you want to be sure it will be used before you put all the time in to creating it. you determine that if more than three students share a ride, on average, you will create the app. you conduct simple random sampling of 20 students in a school with a population of 300 students to determine how many students are in each ride-share (carpool) on the way to school every day to get a good idea of who would use the app. the following data are collected: 6 5 5 5 3 2 3 6 2 2 5 4 3 3 4 2 5 3 4 5 construct a 95% confidence interval for the mean number of students who share a ride to school, and interpret the results. part a: state the parameter and check the conditions. part b: construct the confidence interval. be sure to show all your work, including the degrees of freedom, critical value, sample statistics, and an explanation of your process. part c: interpret the meaning of the confidence interval. part d: use your findings to explain whether you should develop the ride-share app for the football game.