She spent $30.83. Explanation is up above :)
Answer:
B. The typical value is greater in set A. The spread is greater in set B.
Answer & Step-by-step explanation:
This can be proven with the SAS theorem (side-angle-side)
With a perpendicular bisector, the line it bisects is cut directly in half. This creates two equal sides:
and it creates two 90° angles:
∠
∠
And because of the reflexive property of congruence:

Side-Angle-Side.
:Done
2(x+4)+6=22
2x+8+6=22
2x+14=22
-14 -14
2x=8
x=4