Estimation is useful for tipping when you’re dining out, too. If the service is good, 20% of the overall bill is a nice tip to leave. Here’s a clever way to find that: move the decimal of the total amount one place to the left: that gives you 10%. Round this value to the nearest dollar and double the amount, and voila! Twenty percent. Use this to find a reasonable tip for good service on each bill. a. $31.45 b. $129.80

Jennifer's bill for lunch was $15.00 If Jennifer left a 20% tip, which proportion would BEST represent how to find how much tip she should leave? 15 100 20 20 100 15 20 100 15 C. 15 100 20 D.

What interest did Katie pay last month on her credit card if the average daily balance on her was $774.05, there were 28 days in that month, and her annual interest rate is 10.8 %? Round your answer to the nearest penny. Do not input the dollar sign. Do not use a comma.

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.

Composition of k L (hof)(1) = (Simplify your answer.) Question 2, 2.5 Given that f(x) = 4x + 2 and h(x) = x3, find (hof)(1).

12-pack Bubbly-Cola products have a markup of $10.60 per case of six 12-packs at Speedy. They sell at a price of $24.00 for 3 of these 12-packs. What are the cost and the percent markup on selling price per case?

Please answer