Tom paid a mechanic h dollars per hour for a 4 hour job plus $120 for parts. the total charge was $280. which equation can you used to determine how much the mechanic charge per hour?

280= H×4+120

280-120= H×4+120-120

160= H×4

160÷4= H×4÷4

40= H

h(4)+120=280

40 dollars per hour

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

if im undersanding the question correctly, its organized from 10

step-by-step explanation: