The answer is a 36
This is because if you take the area of one of the three triangles that make up the trapezoid you do 1/2 base times height and get 12 and you add all three together thus getting 36 square inches
Are you sure you wrote all the correct numbers because it does not work
Answer: 85
Add up all the numbers: 97+70+89+99+100+78+79+89+77+72=850
Divide 850 by the amount of numbers:
850/10=85
I hope this helps and good luck! :)
T+11 because total would mean add them