Solve each problem. 19) Katherine has 7 8 as many followers on Twitter as her best friend Cailen. If Cailen has 112 followers, how many followers does Katherine have? 20) Jeanmarie’s bill at a café is $5.33. She gives the cashier a $10 bill and eight pennies. How much change does she receive? 21) Here is Xiaopeng’s grade report from last semester. Find his GPA. Let A 4 points, B 3 points, C 2 points, D 1 point, and F 0 points. Round the answer to the nearest hundredth. Course Grade Credits Organic Chemistry B 4 Calculus A 5 English Literature C 3 Speech B 3 Perform the operations. 5) 2678,052 6) 5 2 2 3 3 4 7) 0.00942 10,000 8) 56 24 8 (7 2)2 9) Write as a fraction in lowest terms. 64% 10) Find the area of the shaded region. 10 cm 20 cm 26 cm 14 cm 14 cm 11) Find the volume of the right circular cylinder below. Give an exact value and an approximation using p 3.14. 5 mm 10 mm 12) Arrange the group of numbers in order from smallest to largest. 2 3 , 59 100 , 2, 0.7, 0.6 13) Approximate the location of 5 8 on the number line. 232221 0 1 2 3 Fill in the blank with or . 14) 19 ___ 015 0 15) a 1 4 2 ___ b 1 4 Simplify each expression using the order of operations. 16) 7 3136 (2) (3)3 17) 22(4 3) 4(6) 5 3(3 5) (5 2) 18) This problem is done incorrectly. Find the error and correct it. 62 013 17 0 Work: 62 013 17 0 36 013 17 0 36 4 9 22) A nursing student observes an intravenous drip rate of 14 drops per 12 seconds. How many drops should be observed in 1 minute? 23) Reza fl ies his kite using 25 m of kite string. How high above his hand is Reza’s kite when he uses all 25 m of his kite string and he is standing 15 m away from directly below the kite? 25 m ? 15 m 24) A health clinic found that approximately 4.5% of its patients are allergic to bee stings. If the clinic has 1800 patients, how many are allergic to bee stings? 25) Tamara deposits $12,000 into an account for 6 years at 5% interest compounded annually. How much will be in her account after this time? How much interest will she earn? Use A P(1 R)T. 764 CHAPTER 10 Signed Numbers www.mhhe.com/messersmith
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