At the first four stops, the number of students that board Mr. Edler’s school bus is 4, 6, 12 and 2 students, respectively, and no students exit the bus. After these four stops, the number of students...
Margo has some coins consisting of only pennies and nickels. These coins have a combined weight of 1500 g that is evenly distributed between the two types of coins. If each penny weighs 2.5 g and each...