Gale builds a circular pen in his yard for his dog. the pen has a radius of 10 ft. there is a law in gale's town which states that all dogs must have at least 300 ft2 of room in their pen. does gales' pen meet the standards?
a) no. a = 62.8 ft2
b) no. a = 98.596 ft2
c) yes. a = 314 ft2
d) yes. a = 985.96 ft2

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done

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?

If my mom gets $13.05 an hour, and she works from 3: 30 to 10: 45 in the morning, how much money does my mom make?