Final answer:
The problem regarding Tim Worker's electric bill expenses cannot be solved without additional information about what 'z' represents and how it relates to the electric bill amount. The reference information provided does not detail the 'z' value, thus an answer cannot be confidently determined from the choices given. Clarification on the 'z' factor is necessary to proceed with a solution.
Step-by-step explanation:
To solve the given problem about Tim Worker's electric bill expenses, we need additional context or a formula that relates the electric bill to a value termed as 'z'. Without such context or information, it's impossible to determine what 'z' stands for and how it relates to the electric bill amount of $184.00. In the provided reference information, there is no mention of 'z' or how it is calculated, so we cannot confidently select an answer from the choices provided (a) -0.6, (b) 48.6, (c) 26, (d) 2.2.
If we refer to the other examples, they show how to calculate energy costs based on power consumption in kilowatts (kW), time in hours (h), and the cost of electricity per kilowatt-hour (kWh). For instance, in example 7.12, the energy consumed by a 0.200-kW computer over 6.00 hours per day for 30 days is calculated first, and then the cost is derived based on the electricity rate. Usually, to find the cost of electricity consumption, the following formula is used:
Cost = Power (kW) × Time (h) × Electricity rate (per kWh)
However, without an equation explaining 'z', we are unable to provide the correct selection. If the student can provide details on how 'z' is calculated in relation to electricity bills, we could then attempt to solve the question.