At time x = 0, water begins to drip steadily out of a water tank. After 1 hour, there are 8.7 gallons of water in the tank. After 6 hours, 7.2 gallons remain. Write a linear function rule that models the number of gallons of water y left in the tank for any number of hours x.

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

Anyone know? will mark brainliest if correct

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?