Answer:
8 weeks.
Step-by-step explanation:
There are 7 days in a week so the answer is 56/7 = 8 weeks.
Using the inverse function, it is found that the equation is:

It's initial value is 20.
---------------------------
We want to find the inverse of:

To do this, we <u>exchange y and t, and isolate y.</u>
Then:








It's initial value is:

Rounding, 20.
A similar problem is given at brainly.com/question/23950969
Answer: the last pos term is 3
Details:
213
207
201
195
189
183
177
171
165
159
153
147
141
135
129
123
117
111
105
99
93
87
81
75
69
63
57
51
45
39
33
27
21
15
9
3
-3
1 full revolution=360
4seconds=360degrees
how many seconds is 90 degrees
4:360=x:90
4/360=x/90
simpllfiy
1/90=x/90
1=x
answer is 1 second