Who’s trying to help me with this doe ? I need to show my work also!

NW is 16. a^2 + b^2= c^2. So you can do (c/400) 20^2- (b/144) 12^2 = (a/256) 16^2. Next two problems are 45 degrees, because all triangles are 180 degrees so 180- the 90degree angle you already have is 90/ the 2 sides left = 45degrees.

Horizontal change or the change of x

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!