I would say solve each diameter equation and order them fromleast to greatest, for example 
1 Venus- 7.52×10 to the power of 3
So first simplify 10 to the power of 3 which is, 1000. Then you multiply 7.52 by 1000 which gets you 7520. 
So solve each equation and order it
 
        
                    
             
        
        
        
Answer:∠1 and ∠5
Step-by-step explanation:
(A) ∠3 and ∠6  forms the interior angles on the same side of the transversal. Thus, this option is incorrect.
(B) ∠1 and ∠4 forms the linear pair on the straight line a, thus this option is incorrect.
(C) ∠1 and ∠5 forms the corresponding angle pair, thus this option is correct.
(D) ∠6 and ∠7 forms the linear pair on the straight line a, thus this option is incorrect.
 
        
             
        
        
        
To solve this problem you must apply the proccedure shown below:
 1. You have that  varies jointly as
 varies jointly as  and
 and  and inversely as the product of
 and inversely as the product of  and
 and  . Therefore, you can write the following equation, where
. Therefore, you can write the following equation, where  is the constant of proportionality:
 is the constant of proportionality:
 
 2. Now, you must solve for the constant of proportionality, as following:
 
 3. Susbtiute values:
 
 
 4. Substitute the value of the constant of proportionality into the equation:
 
 The answer is: 
 
        
             
        
        
        
Let T be the taco, B the burrito, MP the mexican pizza, R the rice, and N the beans.
For the main course we can have the first three.
 ----- T
------ B
-------MP
Each main course comes with the two sides. So an R branch and a B branch go to each of the taco, burrito, or pizza.
-----T---------R or N. 
We expand it to 
--------T-----------R
---------------------N
And we repeat it for the rest.
Thus, the tree diagram is
----- T --------R
-----------------N
-----B---------R
-----------------N
----MP--------R
----------------N