For this question, you would have to use the midpoint formula.
(X1 +X2 / 2 , Y1 + Y2 / 2)
In other words,
(9 + -3 / 2 , -7 +5 / 2)
(6 / 2 , -2 / 2)
(3 , -1)
Your midpoint is (3, -1)
17 are older than 16 years old and 12 are taller than 170 cm
7
1.4x10^
Hope this helps!!!!!!!!!
Answer:
I think it's the first one... but I'm not pretty sure.
