Help, this costs all my points and brainliest will be given

Your answer is A. 30 days.
Step-by-step explanation:
Area: [tex]\frac{1}{2}[/tex] (30 + 42)(25) = 900[tex]cm^{2}[/tex]
Divide.
900 / 30 = 30
Feel free to let me know if you need more help. :)
Answer:
The length is the average of 32 and 40
32+40=72/2=36
36 x 25 = 900
900/30=30
A>
Step-by-step explanation: