Mark went to an electronic store, purchased 2 cds and 6 dvds, and spent $156. antonio went to the same store, bought 1 cd and 9 dvds, and spent $210. how much does each cd sell for at the store? $12
$15
$18
$22

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?

What is the circumference of the pie