Which is an expression to find the time in hours?
d = 38 miles, r = 2 miles/hour

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

Atown has a population of 17000 and grows at 2.5% every year. to the nearest year, how long will it be until the population will reach 19600?