Answer:
Step-by-step explanation:
I would take 19hours/2weeks=9.5 hours a week than 9.5hours a week times 7 weeks equal 66.5 hours in 7 weeks
Answer 66.5 hours
18. 12/4 =3, 36/12 =3 the ratio is 3
19. 108/162 =0.667, 72/108= 0.667 the ratio is 0.667 or 2/3
20. 2/3 / 4/3 = 1/2, 1/3 /2/3 = 1/2, the ratio is 1/2
It says only 20 points so I'm not helping