Landon called an electrician who charges $30 to travel to a customer's house and $75 per hour of labor completed. The electrician traveled to Landon's house and completed 4 hours of labor. What was the total amount of money the
electrician charged Landon?

d. all of the above

step-by-step explanation:

2

step-by-step explanation:

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14