Consider a normal distribution curve where 90-th percentile is at 20 and the 25-th percentile is at 10. use this information to find the mean, μ, and the standard deviation, σ, of the distribution.

If the general term of a sequence is 4, then the sequence is A) 4,4,4,4, B) 4,16,64.216 C) 4, 8, 12, 16,

What is the least common multiple of 8, 6, 9, and 5?

The sandbox at a playground is 2 feet tall. The area of the base of the sandbox mis 80 square feet. How much sand does it take to fill the sand box?

Find the value of 2 numbers if their sum is 12 and their difference is 4

What does it mean if a number occurs more than once in a row of a stem - and-leaf plot?

Mrs McDonald spent 24.65 at a yard sale on Saturday. on Sunday she went to another sales and spent 14.95 more than she did on Saturday. what is the total amount that Mrs McDonald spent on both yard sales

Linda purchase a prepaid phone card for $30. Long distance calls cost $.17 a minute using this card when do use her card. Linda use her card only to make a long distance call if the remaining credit on her card is $22.

Consider this equation: - 2x - 4 + 5x = 8 Generate a plan to solve for the variable. Describe the steps that will be used.

What is the graph of the function y=2x2^x

Determine the prime factorization of 104. 24• 3 • 5 23• 13 22• 13 22• 5