Which data set is the most clustered around its mean?

a. 10, 30, 40, 20

b. 12, 14, 36, 38

c. 8, 42, 30, 30

d. 30, 25, 15, 30

Answer is D

Nelly was born x years ago. Which of the following expressions shows how old Nelly will be in four years?

What is 22/7 * 49/2 * 49/2

Of the 756 students in Jacob's middle school, 44% participate in sports, 29% play in the band, and 37% take the bus to school. How many students in Jacob's middle school play in the band? Eplain your reasoning.

Catherine has $400 in her checking account. She writes a check for $600. What is the balance in her account? -$1,000 -$200 $1,000 $200

Jazzmin has 2/5 of a pie. How many 1/10's of a whole pie are there in 2/5 of a whole pie?

Dose a triangle have a perpedicular lines, parallel lines, and intersecting lines

The histogram represents the distributions of essay scores for high school sophomores and juniors in a contest. Which statements are true about the data used to create the histogram? Select three options.

What is the gcf of 7x^2, 7x and - 28

A soccer player kicks the ball to a height of 1 meter inside the goal. The equation for the height, h, of the ball at time, t, is h=-4.9t^2-5t+2. Find the time the ball reached the goal.

Bowl contains 8 red balls, and 7 blue balls, and you draw 4 balls. In how many ways can the selection be made so that at least one of each color is draw?