For a normal distribution, what percentage of values lies within two standard deviations of the mean?

99.7%

97%

68%

95%

Find the greatest common factor of 7, 15 and 21

What is the radius of the circle? (x-9) 2 + (-4) 2 = 400

Yesterday, the math club had 1 less than 3 times their average attendance. Last week they had 3 more than their average attendance. If the attendance for both weeks were equal, what is the average attendance?

16) Which staircase is ase is more difficult to climb? Explain 10 in. 12 in 6 in. Staircase 1 Staircase 2 Which is steeper? Steeper slope harder to climb

Do you add the discount before or after the tax

Show me the work to this problem 4 1/8 + 2 3/5

Estimate 6 3/7 - 2 9/14 show work.

Select all that apply. Which of the following statements are true of a transversal? It is a line. It is parallel to other coplanar lines. It intersects two or more coplanar lines. It bisects line segments.

Jason has 4 tiles. Each tile has a number printed on it. the numbers are 2,3,6 and 8. A decimal number is formed using the tiles and the clues

How do u skip count in 3