Diana usually drives at average rate of 30 mph. If Diana drives for two hours with the speed of x mph, what distance will she cover?

Afarmer has 5 times as many cows as pigs. the farmer only has cows and pigs, and he has 168 animals. how many cows does he have?

Jack brought 12 pet monkeys. if each monkey cost $45.99, how much money did he spend in all?

The diameter of a bacteria colony that doubles every hour is represented by the graph below. what is the diameter of the bacteria after 8 hours? graph of a curve passing through the points zero comma 1, one comma two, two comma four, and three comma eight