Answer:
D.
Step-by-step explanation:
(f - g) (x) ➡ f(x) - g(x)
5x - 2 - 2x - 1 = 3x - 3
1/10 is equal to 0.10. Multiply their total tables (200) by the percent (10% aka 0.10), and you get 20. Hope this helps.
Http://prntscr.com/enb5tw you will find the answer there