1) Mean Absolute Deviation = 1.75
2) Mean = 244
Answer:
18.18
Step-by-step explanation:
total sum of angle of quadrilateral is 360
70+60+ 7x-4+4x-3=360
160-7 +11x =360
153 +11x =360
11x=360-153
x=207/11
x=18.18
Draw triangles within the ramps and since they are right triangles, use the pythagorean theorem based on what was given and solve
