If f(x)=-2-6x, find x so that f(x)=-8.6

number 2- the pressure on a scuba diver at a depth of d feet is given by the function p (d)=64d+2112, where p (d) represents the total pressure in pounds per square foot. in feet, at what depth is the diver when she is under pressure of 2739.2 pounds per square foot?

number#3 if g(x)=2/3x-5, find g(9)

Answer to #1 is... X = 1.1
Answer to #2 is... D = 9.8ft
Answer to #3 is... 1