How do i do this i’m honestly really dumb when it comes to math

11.9  

Step-by-step explanation:

To understand the problem a little better you should know how they got the equation.

The equation is derived from Kepler's 3rd law: T^2=A^3

- where T = years and A= astronomical units (aka 'au')

** T is the time and A is the distance

Now you know what each of the letters mean, it'll be easier to solve.

First, plug in 5.20au into A:

T= A^3/2 —> T=5.20 ^3/2

then you can put this into your calculator to solve the rest:

T= 11.8578 OR 11.9  

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.