Please help!!
What is the formula that is used for DISCOUNT SALES?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)