I forgot how to do this, so I don't need the answer but I more of need the formula/equation. However, the answers would also be great.

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?