Answer:
an = 100 -20(n -1) . . . . . millions earned in the n-th week of release
Step-by-step explanation:
The general term of an arithmetic sequence is ...
an = a1 +d(n -1)
for first term a1 and common difference d.
If we write the equation to give the sequence terms in millions, the first term is a1 = 100 and the common difference is d=-20. Putting these values in the general form, we have ...
an = 100 -20(n -1)
