Daily low temperatures in columbus, oh in january 2014 were approximately normally distributed with a mean of 15.45 and a standard deviation of 13.70. what percentage of days had a low temperature below 2 degrees? (enter a number without the percent sign, rounded to the nearest 2 decimal places)

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)

Simplify the expression. -2/5(10+15m-20n)

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.