1. Find the arc length of a circle with a radius of 14cm, subtended by a central angle of 180
degrees.

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?