PLEASE help me!!!!!!!! Answer all questions and you will get brainliest!!!!!!!!

Answer:
a. 6
b. 4/3
c. 28
Step-by-step explanation:
For a, you multiply 9 by 2/3
For b, you would do 12 divided by 9
For c, you would do 7 divided by 1/4, or 0.25
Hope this helps.