Consider the following set of independent investment:

n a b c
0 -$200 -$100 120
1 50 40 -40
2 50 40 -40
3 50 40 -40
4 -100 10
5 400 10
6 400

(1) for a marr of 10%, compute the net present worth for each project, and determine the acceptability of each project.
(2) for a marr of 10%, compute the net future worth of each project at the end of each project period, and determine the acceptability of each project.
(3) compute the future worth of each project at the end of six years with variable marrs as follows: 10% for n=0 to n=3 and 15% for n=4 to n=6.

Skychefs, inc. prepares in-flight meals for a number of major airlines. one of the company's products is grilled salmon in dill sauce with baby new potatoes and spring vegetables. during the most recent week, the company prepared 4000 of these meals using 960 direct labor hours. the company paid these direct labor workers a total of $19,200 for this work, or $20.00 per hour. according to standard cost card for this meal, it should require 0.25 direct labour-hours at a cost of $19.75 per hour.1. what is the standard labor-hours allowed (sh) to prepare 4,000 meals? 2. what is the standard labor cost allowed (sh x sr) to prepare 4,000 meals? 3. what is the labor spending variance? 4. what is the labor rate variance and the labor efficiency variance?