Asolar water heater costs about $6240 to install (after rebates). a traditional gas water heater costs about $850 and costs about $320 per year to run. the average annual cost to run the solar water heater is about $75
create total cost functions for each of the water heaters as a function of the number of years that the heater is used

For solar:

For traditional:

Step-by-step explanation:

Cost to install solar water heater = $6240

The average annual cost to run the solar water heater is about = $75

Total cost to run x years :

A traditional gas water heater costs about = $850

The average annual cost to run = $320

Total cost to run y years :

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!