Mr. Hawkins is covering a wall with wallpaper. The wall is a rectangle and measures 14 feet by 12 feet. Each square foot of wallpaper costs $2.90. What is the cost of adding wallpaper to the room? HINT: Find the area of the wall, then use that to determine the cost. (Please explain your answer)

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.