Answer: Honestly middle school grades, especially electives don't matter much. don't worry about it.
Answer:
B. The typical value is greater in set A. The spread is greater in set B.
It could be 8 since 8x18= 144 and 144 divided by 2 is 72
X = 4y
3x - y = 70
substitute the x in the second equation with the other half of the first equation.
3(4y) - y = 70
12y - y = 70
11y = 70
y = 6.36 repeating, or 6 4/11
now use this to solve first equation
x = 4 (6 4/11)
x = 25.45 repeating
done
