Four times a number added to 8 times the number equals 48. find the number

In the diagram of circle a what is m

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

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.