Final answer:
To paint all twelve sections, the total cost would be $840.
Step-by-step explanation:
To calculate the cost of painting all twelve sections, we need to add up the cost of painting each section.
- The total cost for one section to be painted red is $15.
- The total cost for one section to be painted blue is $15.
- The total cost for one section to be painted purple is $40.
Adding up the costs of all twelve sections, we get:
Total cost = (Cost of one section painted red) + (Cost of one section painted blue) + (Cost of one section painted purple)
Total cost = (12 x $15) + (12 x $15) + (12 x $40)
Total cost = $180 + $180 + $480
Total cost = $840