The ans is:
cos 20 =x/80
x=75.2
y=-x-4
Here is the picture of the graph:
I believe that the column with gluten free you would equally divide the amount of people so each row would have 6 and in the column for not gluten free you would divide the total by 2 and get 58 for both positive and negative in that column
Answer:
(The common base is 2).
Step-by-step explanation:
You have the equation given in the problem:

Then base of
is 2. Therefore, the common base must be 2.
If you add 3 to both sides of the equation, you obtain:


If you descompose 8 into its prime factors, you obtain that it can be written as:
8=2*2*2=2³
Therefore, you can you rewrite each side of the equation as following:

Where the common base is 2.