I NEED HELP PLEASE ITS A SOLVE FOR X PROBLEM :(

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

Divide. –40 ÷ –5 a –8 b 200 c -200 d 8