How do I get my answer to the questions? 8. Dion made $67,785 last year. Express thisnumber as a single digit times a power often rounded to the nearest ten thousand.9. A rectangle has length 8 x 10 millimetersand width 4 x 10 millimeters. How manytimes greater is the rectangle's length thanwidth?10. Construct Arguments Tara incorrectlyestimates 36,591,000,000 meters as4x 106 meters. Is she correct? Explain.11. Higher Order Thinking An astronomicalunit (AU) is equal to the average distancefrom the Sun to Earth.a. An astronomical unit is about92,955,807 miles. Use a single digit timesa power of ten to estimate this value tothe nearest ten million miles.b. Venus is about 7.2 x 10-1 AU from theSun. Mars is about 1.5 AU from the Sun.Which planet is closest to Earth?Assessment Practice12. The oldest rocks on Earth are about4x 109 years old. For which of these agescould this be an approximation?13. Express 0.000000648 as a single digit timesa power of ten rounded to the nearest tenmillionth.0.000000004 years3.45 X 10 yearsO3.349999999 x 10 years4,149,000,000 years 1. Use a single digit times a power of 10 toestimate the number 0.000007328.2. A city has a population of 38,802,500people. Estimate this population to thenearest ten million.Rounded to the nearest millionth, theRounded to the nearest ten million, thnumber is aboutpopulation is aboutWritten as the product of a single digit and aWritten as the product of a single digitpower of ten, this number isX 10and a power of ten, this number isX 103. The mass of Planet X is 8.46 X 1022 kilograms. The mass ofPlanet Y is 5,028,000,000,000,000,000,000 kilograms. How manytimes greater is the mass of Planet X than the mass of Planet Y?The mass of Planet Y is aboutkilograms.The mass of Planet X is aboutkilograms.The mass of Planet X is abouttimes greater than that ofPlanet Y.4. According to a survey, the residents ofCountry A have approximately 179,300,000dogs and cats as pets. The same surveyreports there are about 5.01 X 107 dogsand cats as pets in Country B. About howmany times greater is the number of dogsand cats in Country A than Country B?5. Estimate 0.00792398 to the nearestthousandth. Express your answer as asingle digit times a power of ten.6. Which number has the greater value,7X 10-9 or 6 x 10-4?7. On a certain planet, Continent X hasan area of 6.23 x 106 square miles andContinent Y has an area of 63,600,000square miles. How many time larger isContinent Y than Continent X?

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8. Dion made $67,785 last year. Express this number as a single digit times a power of ten rounded to the nearest ten thousand.