Which is the better buy 18 cans of cat food for $15 or 12 cans for $9

Which function has the domain x> -11

Arandom sample of 45 observations results in a sample mean of 68. the population standard deviation is known to be 23 a. compute the margin of error at a 959% confidence interval. b. compute the 95% confidence interval for the population mean c. compute the 90% confidence interval for the population mean. d. compute the 75% confidence interval for the population mean

Will give brainliest, 5/5 rank and use the function rule, y=2x +5, to find the values of y when x=1,2,3, and 4. write the answer as ordered pairs that would be used to graph the function.