9000 equals to 900 tens. ( 1. 9×10=90,
2. 90×10=900,
3. 900×10=9,000. )
If you are proving a congruence of triangles then you need to match the corresponding parts to the triangle you are proving congruent.
BAC would then be congruent to MJR because of the corresponding angles
B is the same angle as M
A is the same angle as J
C is the same angle as R
3x + 3x + x + x = 98
98 / 8 = 12.25
36.75 + 36.75 + 12.25 + 12.25 = 98
Answer: 36.75