(5) How many groups of 1 & 2/3 are in 1 & 5/6? *

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 ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents