Does .6 = 3/5 (please help me understand how this works out)

Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?

This is about circle theorems. someone asap : (