Out of 35 shops in a town, 28 sell candy, 18 sell ice cream and 12 sell both candy and ice cream. Find the probability that a randomly selected shop sells
a) ice cream but not candy
b) candy but not ice cream

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?

Using graph paper, determine the line described by the given point and slope. click to show the correct graph below.(0, 0) and 2/3