The answer to this is C.54 units² .
Area=1/2 base*height
base=12
height=9
12*9=108
108/2=54
Area=54
Okay so 11/4 needs to be multiplied by 2 so that the D match up.
so 11/4 x 2 = 22/8
22/8 - 3/8 = 19/8
The difference is 19/8
Answer:
21
Step-by-step explanation:
its correct
Answer:
-11/2
Step-by-step explanation: