Answer:
The base is 12
The height is 4
Then the area = base x height/2 = 12x4/2 =48/2 =24
10.5x + 3y = 811.5
x + y = 97
y = 97 - x
3y = 291 - 3x
7.5x + 291 = 811.5
7.5x = 811.5 - 291
x = 520.5 / 7.5
x = 69.4
69 were sold at the original price
Because if not, different people would get different answers. If the expression is evaluated without using the order of operations, the answer won’t be the same. I hope this helps!
Both are correct.
Good job!