In an all boys school, the nights of the student body are normally distributed with a mean of 71 inches and a standard deviation of 3 inches. Using the empirical rule, what percentage of the boys are between 65 and 77 inches tall?

The owner of a 5000 -gal oil truck loads the truck with gasoline and kerosene. The profit on each gallon of gasoline is 16 ¢ and on each gallon of kerosene it is 15 ¢. How many gallons of each fuel did the owner load if the profit was $780 ?

Find the percent change 50; 44

If m 1 equals (4x + 2) ° and m4 equals 110°, what is the value of x? A. 17 B. 28 C. 30 D. 32

If kyra cuts a 12" string into 3/4 strips for her art project, how many strips will she have A) 9 B) 12 C) 15 D) 16

Find the first 5 terms of the sequence: a1 = 500, an = (an-1) / 5.

Three vertices of a square are (-1, 2), (2, 2), and (2, - 1). What is the fourth vertex of the square? (-1, - 1) (-1, - 2) (2, 1) (5, 1) Question 5 Three vertices of a square are (-1, 2), (2, 2), and (2, - 1).

Find the common ratior r for the geometric sequence and use r to find the next three terms. - 3, 9, - 27, 81,

What is. 31313131 ... and. 02020202 ... as a fraction and decimal

How does a loud sound differ from a soft sound?

When I worked at Southern it took me 8 minutes to get to work. Now, it takes me 26 minutes to get to work. What is the percent increase in the time it takes me to get to work?