Simplify 6(3a - 8b + 2)

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

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet