In the lab, jenny has two solutions that contain alcohol and is mixing them with each other. she uses
200
milliliters less of solution a than solution b. solution a is
14%
alcohol and solution b is
17%
alcohol. how many milliliters of solution b does she use, if the resulting mixture has
375
milliliters of pure alcohol?

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.