Katrin is going to buy a new fridge. she finds this information. fridge cash price £289.99 or fridge 12 monthly payments £26 per month delivery charge £5.99 electricity use per year 291 kwh question 1 he cost of electricity is 15.39 pence per kwh. katrin wants to pay monthly over 12 months and wants the fridge delivered. she thinks that £400 will be enough to pay for both • the fridge (including delivery) • the electricity for 3 years. is katrin correct. show your working clearly question 2 katrin's monthly payment for electricity went down from £38.60 to £34.20 she thinks this means that her monthly payment has gone down by 1/6 is katrin correct? show your working clearly