172.9
You find it by multiplying each side of the triangle by the height (9) and adding the results together.
A(lateral) = 8 * 9.1 + 3 * 9.1 + 8 * 9.1
= 72.8 + 27.3 + 72.8
= 172.9
Answer:

Step-by-step explanation:
Required
Write an equation to present her daily earnings?
Let daily sales be represented by x and daily earnings be represented by y.
y is calculated as thus;


Convert percentage to decimal


Hence, her daily earnings is 
How much are they selling the shirts for ? how much debt do they have ?
Answer: (x+8)(x+2) = x^2 + 10x + 16