in a parking lot, 3/4 of the cars are red and 1/8 are blue. How much greater is the fraction of red cars than the fraction of blue cars

Karianne and lucius are analyzing a linear function on a graph. karianne says that unit rate is equal to rate of change, but that slope is calculated differently. lucius says that unit rate, rate of change, and slope are calculated the same way. who is correct? explain your answer.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?