please Help with my area math question. ​ I don't remember how to do it. multiply or add? and what is the answer to this?

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

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.