When making a choice, we give up costs, and we gain? (Economics)

Ralph bought 6 cds at the cost of $17.75 each how much did the cds cost altogether

Food bill before the tax: $80 sales tax: 7.3% tip: 18%

Square root of 2 x squared divided by square root of 5x

Karin predicts that she will spend 48 minutes biking and 24 minutes running p. What is the total distance of the race

Jake has five cats and then he finds ten more cats how many does jake have after he loses 11 cats

If a Roadrunner ran 80 miles and 4 hours, how long will it take the Roadrunner to run 60 miles? Explain or show how you determined this.

How tall is now that is 10 meters in length and 5 meters in width

Priya looks at the inequalities 12-X>5 and says " I subtract a number from 12 and wants a result that is bigger than 5. That means that the solutions should be values of x that are smaller than something.

If f (x) = 2x2 + 2, find f (5).

Dave received 120$ for his birthday from his parents and his friends. He went on a shopping spree and spent 2/5 of his money on a t-shirt and 1/6 on mountain bike magazines. How much money does he have left.