The Rite family wishes to insulate the attic of their home to prevent heat loss. They are considering R-11 and R-19 insulation. They can install R-11 for $1,600 and R-19 for $2,400. They expect to save $95 per year in heating and cooling expenses ir R.11 is installed. How much extra must they save in utility expenses per year in order to justify the R-19 Insulation if they expect to recover the extra cost in 6 years at an interest rate of 6% per year? The extra savings from the utility expenses per year in order to justify the R-19 insulation must be $ per year. 14