Answer: -12
Step-by-step explanation: It just is man i think
C.416
You take 312 and 6 then divide (312/6) which gives you 52. Then take 52 and 8 and multiply 52×8= 416
28 each book 155-15=140 and then 140÷5=28
The answer is A because Alon could have rotated the figure and discovered that they are congruent