How does one do A and B

First; Draw a castle

Second; You have to use surface area formula on your castle for your different shapes but if all of the blocks are the same the SA should be the same for any castle combination.

Last the SA should be 337500

Step-by-step explanation:

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system

i think the answer is b x = 1, y = 35/2