Answer:

Step-by-step explanation:
Let the smaller number be
. Since they are consecutive even numbers, the larger number can be represented by
.
Therefore, we have the following equation:

Thus, the larger number is 
Formula: an = a1(r)^n-1
n = term number
a1 = first term
r = rate
Plug our values in:
n = 4
a1 = 15
r = 1/3
a4 = 15(1/3)^4-1
a4 = 15(1/3)^3
a4 = 15(1/27)
a4 = 0.5555555556
a4 = 0.6 to the nearest tenth
Line 5 looks to be the best one
X= 8 radical 5 and y= 8 radical 10