248 miles in 4 hours. what is his unit rate of speed in miles per hour?

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

The domain of the following relation: r: {(3, 5), (8, 6), (2, 1), (8, 6)} is (1 point) no domain exists {1, 5, 6} {3, 8, 2, 8} {2, 3, 8}

Louis wants to give \$15 to kids who need school supplies. he also wants to buy a pair of shoes for \$39. how much money will he have to save for both?