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

Hi there
Part a
49.98−49.98×0.5
=24.99
Part b
49.98−10
=39.98
Hope it helps
Answer:
I think it's 52.5%
Step-by-step explanation:
42/80
42 ÷ 80 = 0.525
0.525 * 100/100 = 52.5
<span>5.3125.......................</span>
X equals 13 and that is the answer