Answer:
After 84 days
Step-by-step explanation:
7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, <u><em>84</em></u>
12, 24, 36, 48, 60, 72, <u><em>84</em></u>
Answer:
30
Step-by-step explanation:

(distribute)
(collect like-terms)
(we flipped the sign because we divided by a negative)

Answer:
y=1/2x+0.5
Step-by-step explanation:
I'm assuming the y intercept is 0.5