The answers are in the 3rd picture

Page K 3 of 4 19. How long will it take for an investment of $80,000 to grow to $1,000,000 if the money is invested at 6%compounded continuously? 20. An amount of $2000 is invested at 5% compounded continuously. a) How long will it take for the amount to double in value? b) How long will it take for the amount to triple in value?21. Suppose that $50,000 is invested in a stock fund compounded continuously. After 20 years, the value is $194,809.67. Find the interest rate at which the money was invested. 22. A company spends x hundred dollars on an advertising campaign. The amount of money made in sales S(x) can be modeled by S(x) = 500 + 7000 In(x - 10). If the sales totaled $19,000, how much was spent on advertising?Answers: 1 . 7 2. -2 3. 1/2 4. -3 5. 1.59 6. 10 7. x~-0.717 8. x~-6.395 9. 7.04 10. 0.69 11. {0, 3} 12. - 0.18 13. x = JIN 14. x ~0.123 15. 5 16. 6 17. 4 18. 5 19. 42 years 20. a) 13.86 years, b) 21.97 years 21. 6.8% 22. $2405.33 4 1 PA FS Prison F6 Home End