Help on some math questions? Will rate best answer!?

I'm going to be honest- I've always been really really bad at math. Comprehending it, learning it and visualizing it.. I've always been horrible at it. This is an assignment I've done, but I'm not exactly sure how I did. Any answers would be great. So I can check my answers, or use yours if I got it wrong. I appreciate those who help, I will chose best answer.

Please don't comment if you disagree, there's no need for rude comments. One love

1. What do you call the costs in a business such as hours of labor and quantity of raw materials?

A. Expense items

B. Fixed costs

C. Unit costs

D. Variable costs

2. What is the cost, C, of 27 HEPA air filtration systems if each system costs $2,100 to manufacture? The fixed costs are $1,300. Use C = Ux + F.

A. $27,000

B. $32,000

C. $58,000

D. $63,000

3. What is the consumer math function for computing the approximate expense of operating your business for a month?

A. Y = log(x)

B. C = Ux + F

C. Z = ax2 + bx + c

D. R = cos(x)

5. Overhead (fixed costs) has increased from $2,000 per month to $2125 per month. If 100 units are made during the month at a cost of $25 per unit, what is the new cost total?

8. What is the total cost, C, of processing 4,000 sandwiches at $0.23 per sandwich if the overhead or fixed cost is $18? Use C = Ux + F.

A. $938

B. $1,024

C. $1,124

D. $1,336

13. A mathematical or consumer function must always calculate exactly how many different total costs in a particular month?

A. 0

B. 1

C. 2

D. 3

14. In a business, what is the proper term for expense items such as facilities, rental, and insurance?

A. Cost functions

B. Fixed costs

C. Unit costs

D. Variable costs

15. What are the possible values of C called in the function C = Ux + F?

A. The domain

B. The range

C. The relation

D. The rule

16. What are the possible values of x called in the function y = mx + b?

A. The domain

B. The range

C. The relation

D. The rule

17. Overhead (fixed costs) has increased from $2,000 per month to $2125 per month. If 100 units are made during the month at a cost of $25 per unit, what is the old cost total?

18. What is a simple word that describes a consumer math function?

A. Finance charge

B. Interest

C. Rule for computing numbers

D. Square root

19. Vanessa found a less expensive “motivator” for her robot business. The old “motivator” cost $4.00; the new motivator cost $3.65. How much can she save on 220 motivators?

A. $57

B. $77

C. $81

D. $91