For each situation, identify the dependent and independent variables.
write a function in function notation, and use the function to solve the
problem.
6. a plumber charges $70 per hour plus $40 for the call. what does he
charge for 4 hours of work?
dependent:
solution:
independent
function:

40% off the regular price is the correct answer.

step-by-step explanation:

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2

answer: what in the world is this

step-by-step explanation: