Answer:
First option: 
Step-by-step explanation:
The missing options are:

We know that "x" represents the number of weeks Bess worked and "y" the number of weeks Gina worked.
According to the data given in the exercise, Gina and Bess earn $45 per week for delivering flowers, this is:

Since earned an additional total bonus of $20, then the total money in in dollars that Bess and Gina earned for delivering flowers can be shown with the following expression:

Notice that this expression matches with the one shown in the first option.
I believe or if I am not mistaken it is y equals x plus 3
X^2 + x^2 =32
2x^2=32
x^2=16
x=4
Answer: 3
To check:
2 * 3 = 6
It would be c. 12 inches
H = V/lw
The Length * Width = 450
and the volume is 5400
So 5400/450 = 12
Hope that helps!