Answer:
Required equation : 
Weight of each of his checked bags = 15.5 kg
Step-by-step explanation:
Number of checked bags = 2
Backpack weight = 4 kg
The total weight of Carl's baggage = 35kg
Let w is the weight of each checked bag.
Weight of 2 checked bags = 2w
Weight of 2 checked bags + Backpack weight = Total weight of Carl's baggage

Subtract 4 from both sides.

Divide 2 from both sides.

Therefore, the weight of each of his checked bags is 15.5 kg.
What is the probability that a student with a GPA below 3.0 does not enjoy school?
Only 15/60 below 3.0 enjoy school.
Rounded, that equals 25%.
Therefore, there is a 75% probability that a student with a GPA below 3.0 does not enjoy school.
Rounded to the tenths place is 8015.8
The most accurate would be the second statement: <span>The graph is misleading because it uses 3-dimensional bars.
The vertical range is just enough. It only appears small because the bars are in 3D. It should have been in 2D so that we could directly trace it to how much frequency each category is. Even the axes are in 3D also.</span>