3x(1.05) = 3.15x
1.05x + 1.05x + 1.05x = 3.15x
ANSWER

EXPLANATION
The given line passes through the origin, hence it has equation of the form,

Therefore y varies directly as x.
The line passes through the point (3,1)
This implies that,


Hence the constant of variation is

The equation is

We know that 5 x 5 = 25, so the only answer choice with a 5 in it is 0.5
0.5 x 0.5 = 0.25, and the square root of that just equals 0.5.
Answer: C. 0.5
Answer:
this is not maths
is the answer
if you like my answer please like comment and mark me as brilliant
X=5.5 is what I got when I did the math