Can someone plis answer this three math questions?

Answer:
19. c 20. d 22. a
Step-by-step explanation:
19. 3 pounds × 16 oz. = 48oz.
48oz. / 2 = 24oz.
24 oz. / 3 = 8 oz.
20. Quad. II, III, and IV can include a line with a negative slope.
22. 3p - 2 >= 1
3p >= 3
3p + 2 >= 5