A DVD priced $17.50 cost $18.81 after tax. what is the percent if sales tax

The measure of Angle 1 is 30 degrees less than twice the measure of Angle 2. What is the measure of Angle 1? What is the measure of Angle 2?

Find three consecutive even integers such that their sum is 50 more than the largest integer

Luna observed that in the last 12 issues of "Rise Over Run Weekly," 384 of the 960 pages contained an advertisement. What is the probability that the next page she turns to will contain an advertisement?

What is the name for the area between two concentric circles?

A water park charges a rental fee plus an hourly fee for inflatable inner tubes. The total costs of 3, 4, and 5 hours are $8.00, $8.75, and $9.50, respectively. What is the cost of the hourly fee? What is the cost of the rental fee?

Add h and 2, then multiply g by the result

A colony of ants has 50,000 members. Sam thinks the colony will grow at a rate of 4.5% each hour. About how many ants should he expect there to be in the colony after 10 hours

If jill had 6 different sweaters and 4 different pairs of pants how many different combinations can she wear?

2[s+3 (s-31) ]=18 how would i solve this

Paula ran 24 ft with the football and then passed it 15 feet to newt. newt ran 70 yards for a touchdown. what was the total number of feet the ball traveled?