Answer:
$108.90
Explanation:
step 1. multiply kw by rate of change ( 1.1kw x .11 = .121)
step 2. multiply the product above by the time use which is 30 mins in this case so .121 x 30 = 3.63
step 3. last step is to multiply the product you just got by the time per month soooo 3.63 times 30 days = 108.90 :)
