Montel and ellie each need to finish 15 history questions. montel says that he can finish 10 questions inn 2 hours. ellie says that she can finish all 15 questions in 3 hours. which friend will finish first? use unit rates to support your answer.

Can someone me do math because i am having a breakdown rn because i don’t get 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

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30