Solve the problem.The following is a supermagic square.23585…

Solve the problem.The following is a supermagic square.2358582341767641a. Find the sum of each row, the sum of each column, and the sum of each diagonal.b. Find the sum of the four numbers in the center.c. Find the sum of the four numbers in the corners.d. Add 10 to each number in the square. Is the square still a magic square?

BONUS QUESTION The owner of a downtown parking lot has emplo…

BONUS QUESTION The owner of a downtown parking lot has employed a civil engineering consulting firm to advise him on the economic feasibility of constructing an office building on the site. Betty Samuels, a newly hired civil engineer, has been assigned to make the analysis. She has assembled the following data: The analysis period is to be 15 years. For all alternatives, the property has an estimated resale (salvage) value at the end of 15 years equal to the present total investment.If the MARR is 10%, what recommendation should Betty make?