Beth sold half of her comic books and then bought nine more she now has 28 how many did she have to start with

Write the equation in logarithmic form 8^x=64

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove