A solar water heater costs $6240 to install (after rebates). The average annual cost to run the solar water heater is about $75. A typical gas water heater costs $850 to install, and costs about $320 per year to run. Q3.1 Part a) Create a total cost function for the solar water heater as a function of the number of years since it was installed. Show all work. Define all variables. Include units. Upload a pdf scan of your work in the correct orientation for CREDIT. Please select file(s) Select file(s) Save Answer Q3.2 Part b) Create a total cost function for the gas water heater as a function of the number of years since it was installed. Show all work. Define all variables. Include units.

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