Farmer Brown had ducks and cows. One day she noticed that the animals had a total of 20 heads and 66 legs. How many of the animals were ducks and how many were cows?

Al Dietrich is in training. He swims for 30 minutes, bicycles (10 mph) for 30 minutes, and runs (8 mph) for 30 minutes everyday. How many calories is he burning with this training each day?

Earl needs to fill juice cups for his little brother's birthday party. There are 25 juice cups and each juice cup holds 12 fluid ounces. The juice comes in 1-gallon bottles.

In a standard deck of cards there are four suits: spades, clubs, hearts, and diamonds. Each suit has one each of 13 cards: ace, king, queen, jack, 2, 3, 4, 5, 6, 7, 8, 9, and 10.

An above ground pool in the shape of a cylinder has a diameter of 18 feet and a height of 4.5 feet. If the pool is filled with water to 6 inches from the top of the pool, what is the volume, to the nearest cubic foot, of water in the pool?

How many pounds are equivalent to 40 ounces

75,000 live bacteria are present in a culture in a flask. When an antibiotic is added to the culture, the number of live bacteria is reduced by half every four hours. Approximately how many hours have passed when there are 2000 bacteria left alive?

Tina completed 2/3 of her homework. George completed 7/8 of his homework. Who completed a greater fraction of homework

A scientist is working with 0.9m of gold wire. How long is the wire in millimeters

A person who weighs 100 pounds on Earth weighs 16.6 lb on the moon. Which variable is the independent variable?

Which expression shows how 5 • 37 can be rewritten using the distributive property? 5 • 30 + 5 • 37 5 • 30 + 7 15 • 30 + 15 • 7 5 • 30 + 5 • 7