PRACTICE: Write each percent as a decimal. If you need a refresher. look at the T-2 prep skills. 1. 81% 3. 99.9% 5. 12.45% 2. 6% 4. 63.2% 6. 81% Objective 2. Compute a percentage of a given amount We practiced this skill in the last lesson. If you need a quick reminder, take a look at the ?-2 prep skills for examples. FHA C TIC E: 7". You place an order online with the total value of the items in your shopping cart coming to $140.95. Shipping is free, but when you get to the checkout, you nd you have to pay 6.2 5% sales tax. How much does sales tax add to your bill? 8. A local construction company charged a 2.5% convenience fee if customers want to pay their bill with a credit card. If Mr. West is billed $3,450 for the work he had done and pays with a credit card, what is the convenience fee? 9. Suppose you make $2500 per month and want to set aside 9.5% of your monthly salary in a retirement account. How much will you put into your retirement account each month? PRACTICE: Evaluate the expressions below, rounding to the nearest hundredth when necessary. 10. Find Pin P = 2w + 2/ if w = 15.7 and / = 23.1. 11. Find A in A = P(1+ rt) when P = $3,400, r = 0.025, and t = 12. 12. Find Vif V = - /wh and / = 35.9, w = 16, and h = 47.2. 13. Find x if x =6(a -5 .5b) if a = 19 and b = 12. 14. Find S in S = 2/w + 2/h + 2hw when / =5, w =6.2, and h = 9. 15. Find A if A = P 1+ _ when P = $10,000, r = 0.04, n = 4, and t = 10. nPRACTICE: Use a calculator to evaluate each expression, rounding the nearest hundredth if applicable. 112 85 0 035 20 16. ' 43+4 19. 4,995[1+ 4 ] 900 12-15 17. . 4'75130 20. 15,000[1+0125] 13. (7+ 115)2 25+5 PRACTICE: Salve each equation. Round to the nearest hundredth when necessary. 21. 350 = P{0.06}(8} 22. 11.?p = 8.3 \f