Sol invests $10,000 at age 20. Sol wants the investment to be worth $45,000 by age 38. If interest is compounded continuously, what rate of return does Sol need to reach that goal? Enter your answer as a decimal rounded to the thousandths place.

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.