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Question :
57.Determine the number of significant figures in each value below.
a.34.56c. : 1409655

57.Determine the number of significant figures in each value below.

a.34.56c. 0.000890

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b.10700d. 5600.1

58.Calculate the following and round to the correct number of significant figures.

a. (12.00 x 1.5) ÷ .00625

b. 3.61 x 10^{3} ÷ 5.4008 x 10^{-4}

59.Ethanol has a density of 0.78 g/mL. What volume would 500. grams of ethanol occupy?

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60. A 1-dollar bill is approximately 6 inches long. What is the length of a dollar bill in millimeters? (1 inch = 2.54 cm)

61.In a given class, the average male student weighs 185 lbs and the average female student weighs 125 lbs. What is the difference between the weight of the average male and average female in kilograms? (2.205 lb = 1 kg)

62.Convert 5.67 x 10^{4} millimeters into centimeters.

63.Iron has a density of 7.86 g/cm^{3}. What is the mass of 12 cm^{3} of iron?

64.You are traveling in a country that uses the metric system. Your child is sick and a nurse determines her temperature to be 40.8 ^{º}C. What is this temperature in ^{º}F?

65. You stop to purchase gasoline. The price at the pump is 85 cents/liter. What is this price in dollars/gallon? (1 gal = 3.785 l)

66.A child with a mass of 35.4 kg has a fever. The proper dosage of acetominophen is 15.0 mg/kg of body weight. How many teaspoons of syrup will you give the child if the syrup contains 160 mg of acetominophen/teaspoon?

67.The high temperature on a given day is 76 ^{º}F. Convert this to Celsius.

68.The low temperature on a winter night might be as low as -28 ^{º}C. Convert this temperature to Fahrenheit and Kelvin.

Section 11.6

69.A doctor orders tetracycline, 240 mg. The bottle of tetracycline syrup indicates that the concentration is 120 mg per 5 mL. How many milliliters of syrup do you give the patient?