1. The table shows the numbers of hours require in each of three departments to make a unit of various products named A, B, and C. For example, product B required 1 hour of time in Department I, 3 hours in Department II and 7 hours in Department III.

Hours Required Per Unit of Product Department A B C I 1 1 9 II 1 3 7 III 2 7 13

Find the numbers of units of A, B and C that could be made if Department I has 75 hours available, Department II has 85 hours available and Department III has 175 hours available. 2. The 2010 U.S. Federal tax rate for single individuals was as follows: 10% on an adjusted gross income (AGI) between $0 and $20,000; 20% on the excess over $20,000 on an AGI between $20,000 and $60,000; and 30% on the excess over $60,000 on an AGI between $60,000 and $100,000. (a) Determine the tax function. (b) What was the couples AGI if taxes are $13000? 3. A hardware company has a linear total cost function and has determined that it has a total cost of $13,980 on sales of $6,000. The same company has a total cost of $18,620 on sales of $14,000. The selling price per unit is $1. (a) Determine the revenue, cost, and profit function using q for quantity. (b) What is the fixed cost? (c) What is the variable cost on sales of $60,000? (d) What is the total cost on sales of $60,000? (e) Find the break-even point and break-even dollar volume of sales.

plz give me answer all of the qus as soon as possible.Advance thank you.