Treon bought 25 apples at the grocery store for $15.00 which proportion should be used to find the amount of money he would pay for 3 apples

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625

Find the volume of the wedge cut from the first octant by the cylinder z=12-3y^2 and the plane x+y=2.