80 points pls asap!
1.how would you convert f(x)= 3^x to a logarithmic function? (show your work)

2.solve 5^x=7 and show all work

3. simplify log3 20 - log3 5

(number 2 is solving exponential equations with unequal bases. i keep getting it wrong )

Ahomeowner plans to hang wallpaper on one wall of a bedroom that is 10 feet long if a stripe of wallpaper is 20 inches wide and stripes or hung vertically how many stripes on wall paper with the homeowner required

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

Find the domain of the following expression: 1/(√x)-2