Estimate the total cost of the items represented by the set of prices using the following methods. $5399 $7289 $3771 $2132 (a) rounding O $17,300 $18,000 $18,600 O $18,800 $19,000 (b) front-end estimation 2$ (c) range estimation (d) front-end estimation with adjustment

This question has 2 parts.

An environmental engineer wants to evaluate three different methods for disposing of nonhazardous chemical waste: land application, fluidized-bed incineration, and private disposal contract. Use the estimates below to help her determine which has the least cost at /= 15.00% per year on the basis of an annual worth evaluation. First Cost AOC per Year Salvage Value Life Land $-145000 $-86000 $23000 4 years Incineration $-760000 $-70000 $260000 6 years Contract O $-132000 O 2 years

Consider a grocery bill containing the following costs for the items purchased: $3.07 $5.72 $7.29 $5.13 $8.73 $1.24 $7.42 a. Estimate the total cost by first rounding each to the nearest dollar. $ b. Estimate the total cost by first rounding each to the nearest fifty cents. $ c. What is the actual total cost? $ Show all work using the correct method on your handwritten work/answer sheet.