I believe your equation would be ( H - 3 = -12 )
Step-by-step explanation:
You have to add all the numbers equals 160.
Then divide <em>how </em><em>many</em><em> </em><em>numbers</em><em> </em><em>there</em><em> </em><em>are</em><em>.</em> There are 20 numbers. Then, it is the sum divided by the count.
Hope this helps. Good Luck!
Quadrilateral ( trapezoid )
Answer:
I believe it is a
Step-by-step explanation: