On their way to summer camp, priscilla's family drive 135miles and stopped for gasoline. then they drove 40 more miles to the camp. clifton's family also drove to the camp, but they drove half as far as priscilla's family. write a numerical expression to represent the distance clifton's family drove.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

If the value of cos330°is√3/2 then find cos 165°.

2. using calculations based on a perpetual inventory system, determine the inventory balance altira would report in its august 31, 2021, balance sheet and the cost of goods sold it would report in its august 2021 income statement using the average cost method. (round "average cost per unit" to 2 decimal places.)