What is the circumference of a circle with a diameter of 30 cent

Lines p and q intersect. find the value of b. show your work. cite any theorems you use.

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

Nine more than four times a number is the same as one less than twice the number. find the number?