How many 4 letter combinations are there for SEATTL? No repetition is allowed? (Is there 11 or 15 combinations?)

Which value of c would make he following expression completely factored? 8x+cy

You can find the constant of proportionality by finding the ratio of

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