1. The product of the ages, in years, of three teenagers is 4590. None of the teens are the same age. What are the ages of the teenagers? 2. A hat and a jacket together costs $100. The jacket costs $90 more than the hat. What are the cost of the hat and the cost of the jacket? I

Rolf's Golf store sells golf balls for $35 per dozen. The store's overhead expenses are 28% of cost and the owners require a profit of 21% of cost.  a. How much does Rolf's Golf store buy the golf balls for? per dozen Round to the nearest cent.     b. What is the price needed to cover all the costs and expenses? Round to the nearest cent.   c. What is the highest rate of markdown at which the store will still break even? Round to two decimal places.   d. What markdown rate would price the golf balls at cost? Round to two decimal places.

Suppose that the luxury sales tax rate in a foreign country is 19%. A very wealthy socialite bought a diamond tiara for $244,000. How much tax does she pay?

Arley's Bakery makes fat-free cookies that cost $1.70 each. Arley expects 30% of the cookies to fall apart and break. Assume that Arley can sell the broken cookies for $1.60 each. Arley wants a 45% markup on cost and produces 200 cookies. What price should Arley charge for each unbroken cookie? (Round your answer to the nearest cent.)