What number comes between 2 and 4

Uri asked six friends how many different foreign countries they'd been to. He recorded 0, 1, 1, 2, 5, and 9 countries visited. What is the mean absolute deviation of the number of countries visited? Round to the nearest tenth, if needed.

Find the dimensions of a rectangle with perimeter 84 m whose area is as large as possible. (if both values are the same number, enter it into both blanks.)

Grace is measured for her annual check up. She is inches tall. Last year she was inches tall. How much did she grow in one year?

Consider the following number line. What is the sign of A + BA+BA, plus, B? Choose 1 answer: Choose 1 answer: (Choice A) A Positive (Choice B) B Negative (Choice C) C Neither positive nor negative-the sum is zero.

Let's consider the time as a discrete variable with an increment of 1 minute. You arrive at a bus stop at 10 AM, knowing that the bus will arrive at some time uniformly distributed between 10 and 10:30.

A car moves at a speed that allows it to move 45 yards in 5⁄4 of a second. How long will it take a car at the same speed to move 80 yards? Write your answer as a fraction of a second

Suppose that 9 green balls and 13 purple balls are placed in an urn. two balls are then drawn in succession. what is the probability that both balls drawn have the same color if the first ball is replaced before the second is drawn?

Write the complex number in polar form. Express the argument in degrees. 4i

Blue string 5/4 inches long. If the length of blue string is 5/2 times the length of a piece of green string, what is the length of the piece of green string

What is the answer to this equation 9-4X=1