Dana recorded a temperature drop of 20 and a second temperature drop of 30. What is the total change in temperature

Multiplying an even number of negative numbers gives an answer that is choose from:

Adriveway is 40 yards long about how many meters long is it

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