Let the amount of shells collected by Aaron be

and the amount of shells collected by Maria be

respectively. Then the following system of equations should be solved:

First of all, express

out of first equation:

Then, replace

in second equation with found expression and solve it:



Finally, replace

in first equation with found value and solve it too:


So, Aaron has found
7 shells while Maria has found
21.
It would be D because ur an employee and u need a handbook to see what ur handelling
Answer
67.5
45° would be the other angle of 2x°
180° - 45° = 135°
135/45 = 67.5°