Answer:
Step-by-step explanation:
Let consider that both pyramid are simmilar. The surface area of the pyramid is directly proportional to the square of the height is:
A(x) = P(1.02)^x
A(x) = P(1 + 0.02)^x
A(x) = P(1 + r)^x
Therefore rate of change = 0.02 = 2%
3x+7=4x
Move the 3x to the other side
7= 4x-3x
7=x