MATH PLS HELPPP WITH PROBLEMS BRAINLIESTTT AND POINTSSS

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap