A backpack originally costs $35.It is on sale for $22.75. Find the percent of decrease. 21 points bruh and also sub to RahimZ

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

What is the value of x in the equation7x+2y=48 when y=3

One of the problems with our current election system is? ?