Multiply by b x h
b=base
h=height
and you will get your answer
You will have to get the difference and get a common denominator but first combine the mixed number:

Then subtract the numbers

Angel took 5/12 hours longer than Chris
He is not making a valid inference because he is assuming the student populations interest based on a small part/ group of the student population, his class.
Answer:
Assuming the graphs are abcd, 1 is b, 2 is c, 3 is a, and 4 is d.
Step-by-step explanation: