Help please I’ll give extra points

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Miguel’s teacher asks him to color 4/8 of his grid. he must use 3 colors: red, blue, and green. there must be more green sections than red sections. how can miguel color all the sections of his grid to follow all the rules