I think it's d hope it helps
The answer is : impossible
Someone told me if I answer a question I can watch videos to unlock my answer sorry
Answer:
Option A. 
Step-by-step explanation:
step 1
Find the area of the brownie pan
The area of the trapezoid is equal to

step 2
To calculate the number of days, divide the total area of the brownie pan by 30 square centimeters of brownie
so

Answer:
- 1 5/24 cm
Step-by-step explanation:
We'll have to get the fractions to a common denominator. the least common denominator for 3 and 80 is 240.
So - 1 1/3 = - 1 80/240 = 320/240
21/80 = 63/240
-11/80 = -33/240
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-320/240 + 63/240 - 33/240 = -290/240 = - 1 50/240 = -1 5/24 cm