Answer:
A. 56sq. units
Step-by-step explanation:
I know this is correct because I just had this question and this was the correct answer.
Answer: A.56 sq. units
A=( a+b)h/2
(12+16)4/2
(28)2
56
A=56
-10/-5= 2 simply divide
2 negatives multiplied and/ or divided by is a positive number