Answer:
A, C, D
Step-by-step explanation:
Solve all equations:
A. 

This is incorrect equality, so the equation has no solutions.
B. 

This is correct equality, so the equation has infinitely many solutions.
C. 

This is incorrect equality, so the equation has no solutions.
D. 

This is incorrect equality, so the equation has no solutions.
A is correct
B is correct
C is wrong
D is wrong
The answer for this is 37000
Answer:
Blank area:40cm²
Shadow area:100cm²
Step-by-step explanation:
The total area:10×14=140cm²
Triangle area:10×8×
=40cm²
Shadow area:140-40=100cm²