Scott has just spent £6160 on solar cells to go on his roof.In the first year they saved him £560 on his electricity bill.Calculate the total payback time of the solar cells.Payback time = _____ years

The payback time for the solar cells pictured was originally calculated to be 8.5 years.Complete the sentence:Possible Answersmore light can reach the cellsincreasedecreaseless light can reach the cellsit will damage the cellshave no impact onI DON'T KNOWRESETSUBMIT ANSWER

Martin spent $68 on a new drone that he had been saving for. Now, he has $41 left in his savings jar. Click the equation that could be used to find the total of his savings, s, before he bought the drone.How many dollars did Martin have saved before he bought the drone? dollars

Initial cost = £1440Saving = £120 each yearCalculate the payback time.Payback time = _____ years

The farmer’s monthly electricity bill to the power company using the mains electricity supply was £400.The biogas generator for the farm would cost £20 000 to buy and install.Assuming the biogas generator provides all of the electricity requirements for the farm, what is the pay-back time for the generator?Payback time = _____ months

Henry is building an in-ground pool at his house. He is doing most of the work himself to save money. To dig the pool, he rents a small backhoe for $95.50 a day. If his total bill comes to $286.50, for how many days does he rent the backhoe?