help me to solve this equations please

Help Me To Solve This Equations Please class=

Answer :

Answer:

Shown Below

Step-by-step explanation:

Shown Below

1. 3^x=81 3^4=81 x=4

2. 169^x=13 x= 1/2

3. 5^x= 1/5 x= -1 (inverse)

4. 0.5^x=4 x= -2

5. 2^x= 1/2 x =-1