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 :

step-by-step explanation: you take each of the numbers and divide by the amount then you take the range

probability for j is 1/4

while

a is 1/6