Find the 17th term of the arithmetic sequence with the terms a1=-7 and d=3

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Find the rate of change for the situation. you run 7 miles in one hour and 21 miles in three hours.