20a + 4b - 9a + 3 = 11a + 4b + 3
Answer:
-14
Step-by-step explanation:
4+7=11 so therefore -3-11=-14
Answer: Your answer is 50
Step-by-step explanation:
Not really sure whats up with that inequality but she can't, if she has to spend 1.5 hours in a lab that leaves her with 5 hours. 5/4 is 1.25, so no, she can only spend 1.25 hours with each student.
