Next year, Dana will be twice as old as her sister will be. Four years ago, Dana was three

times as old as her sister was. How old is each now?

You start out driving from your house to an old friend's house in a different town, which is 280 miles away. After an hour and a half, you have gone 105 miles.

The base of a box is a rectangle. The width of the box is half its length. The height of the box is 0.5m. Find the volume of the box if the area of the base is 1.08m² less than the combined area of the sides.

Factor by grouping x^3-4x^2+7x-28

Jasmine won 72 prices of him playing the bean bag toss at the country fair. At school she gave two to every student in her math class. She only has 10 remaining. How many students are in her class?

Three sisters combine their money to purchase a gift for their grandmother. They currently have a total of $26. The gift costs between $30 and $35. The gift cost can be represented by the compound inequality below.

In a class of 35 students, 10 students have a brother, 15 have a sister and 7 have both a brother and a sister.

Simplify the expression * 2+ * (*-5) - * +7

Which inequality represents this sentence? six plus two is less than nine plus three. A.) 9+3∠6+2 B.) 6+2≥9+3 ↑without the line C.) 6+2≤9+3 D.) 6+2∠9+3

Weston is buying a house for $215,000. He is financing $185,000 and obtained a 30-year, fixed-rate mortgage with a 6.525% interest rate. How much are his monthly payments?

Tristan is 9 years younger than his cousin John. If the sum of their ages is 43, find how old each boy is.