Here are a couple of questions:

First:

You are given the equation y=logbase 10 (kx-4) + c

The x intercept is (7,0) and the graph passes through the points (52,1).

Determine the value of k and c.

Second:

Solve for A in terms of B and C if:

A, B, and C > 1, and

logbase C (AB) - 1/logbase A (C) = logbase C (A) + logbase root12 (12)

Any help is appreciated.