N = Number of years = 80 - 55 = 25
A = $400,000
r = 6% = 0.06
A = P(1 + r)^n
400,000 = P(1 + 0.06)^25 = P(1.06)^25 = 4.292P
P = 400,000 / 4.292 = $93,200
A and B have the same perimeter
You may want to include a question
Step-by-step explanation:
The above sequence is a geometric sequence
For an nth term in a geometric sequence

where
n is the number of terms
a is the first term
r is the common ratio
From the question
a = 5
r = 10/5 = 2
Therefore the explicit formula for this sequence is

Hope this helps you
When you find area it is bxh for a rectangle so we have (4x3)x2 + 4x(7x3)=108