Hello could you help me understand how to solve these questions? Thank you!

EXPONENTS & LOGARITHMS 4) You invest $1000 in an account paying 6% compounded monthly. How long will it take to double your investment? 1) Simplify each of the following. 9 7, *3 b i a) 5 ) [ 16} 5) The half life of a radioactive isotope is 8 days. If 3.6 kg are present now, how much will be present in I days? How much will be present in 22 days? C) [58)? d) (4113): e) (mm/W 1) (27p3tr5'r'1)"3 2) Solve each equation. a) logx 49 : 2 b) logs 216 : x a) log m :15 d) logi/E:x 3) You invest $2500 in an account paying 5% compounded quarterly for six years. How much will he in the account at the end of the time period