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?

The sales of a particular brand of children's athletic shoes rose from $4,800,000 to $5,400,000. Find the percent of increase in sales. Round to the nearest tenth of a percent if necessary

Miriam is visiting five friends in her neighborhood, Louise, Mike, Nicole, Oscar, and Pascal. In each arrangement below, the first initial of each person's name represents that person's position as he or she is visited by Miriam.

Find the area of a rectangle with length, l = 4x + 3 and width, w = 4x - 3.

Does 131 appear in the sequence 6n-1

What is the answer for 24 (m+32)

An airline finds that 5% of the persons who make reservations on a certain flight do not show up for the flight.

20 hours put into degrees?

Which should be calculated first to solve this story problem? Marta has had a health club membership for 5 weeks. She goes to the health club 6 times a week. She exercises for 1.5 hours each visit. She spends 0.

An animal shelter houses only dogs and cats. The ratio of cats to dogs at the shelter is 11:9. What is the ratio of the number of dogs to the total number of animals at the shelter?

One student says a decimal can reach one million. The other says it cannot how can he defend his claim.