Answer:
Hey there!
We have an=a1(r^n-1), which is the formula for a geometric sequence.
The common ratio is 3, and 2 is the 1st term.
Thus, we have a1=2(3)^(n-1)
Hope this helps :)
Answer:
x - 
Step-by-step explanation:
A polynomial has the form
first term is the term of highest degree followed by term of second etc.
note that x =
← degree 1
x -
fits this description and is a polynomial of degree 1
Your equation would be y = 5x + 40 because you already made 0 and are selling 5 each day
So some points you may use are (0, 40), (1, 45), (5, 65), (10, 90)
Hope this helps!