The fishers ate out at a restaurant and paid a total of $68.22, including the tip. If the fishers tipped 20%, what was the cost of the meal?

Simplify the trigonometric expression sin (4x) + 2 sin (2x) using Double-Angle Identities.

At 7:00 A. M., Alicia pours a cup of tea whose temperature is 200°F. The tea starts to cool to room temperature (72°F). At 7:02 A. M. the temperature of the tea is 197°F. At 7:15 A. M. the temperature of the tea is 180°F.

How do you make the number 9,232,005 into a base ten model

You and your friend are in a canoe race. Your friend is a half mile in front of you and paddling 3 miles per hour. You are paddling 3.4 miles per hour. a. You are 8.5 miles from the finish line.

A group of friends went to a hamburger bar 2/5 of them bought a hamburger 1/3 of them bought chips. The rest bought cola. What fraction of the group bought food? What fraction bought a drink?

Mary walked 23.61 miles this month. That is 8.625 more miles than she walked last month. What is the total number of miles she walked in both months?

2x + y = 10 -4x + 5y = 22

How is multiplying 0.3 by 10 like multiplying 0.3 by 0.01? how is it different?

Long division with 489

How do you do this step by step [3 (c-4) - 5 (c^2+4c-8) ]