Use the domain and range of each of the following relations to determine which is a function.
a. {(3. - 3), (9, - 6), (0, -9)}
b. {(3. – 3), (9, – 6), (3, - 9)}
c {3. 3), (9, – 6), (2, 2), (0, - 9)}
d. {3,9, 0, - 4}

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?