These data show the age in years of 9 members of the youth orchestra.

12 14 16 17.5 10 18 15 15.5 19

What is the IQR (interquartile range) for these data?

Dean is a certified personal trainer, and before taking on new clients, he wants to finalize his pricing plans. One plan is to charge $10 for the initial consultation and then $45 per session.

How many ways are there to pick 8 balls from large piles of (identical) red, white, and blue balls plus 1 pink ball, 1 lavender ball, and 1 tan ball?

Which equation is represented by the phrase "two times a number equals six"?

a father is now 38 years older than his son. Ten years ago he was twice as old as his son. let x represent the age of the son now.

To earn a profit, the revenue must be greater than the cost. The revenue for selling x units of an item is R = 26.05x. The cost to make x units is C = 1,500 + 16.75x.

According to an airline, flights on a certain route are on time 85 % of the time. Suppose 17 flights are randomly selected and the number of on-time flights is recorded. (a) Explain why this is a binomial experiment.

2x+7-5x+8=3 (5+6x) - 12x

How to write 1,010,101.101 in expanded form

Tom is hiking on a trail that lies on a railroad track. The total length of the trail is 5.4 kilometers. Starting from the beginning of the trail, he has been walking for 45 minutes at an average speed of 2.4 kilometers per hour.

A rocket is launched from the top of a 90 foot cliff with an initial velocity of 140 feet per second. The height, h, of the rocket after t seconds is given by the equati