Answer:

Step-by-step explanation:
Let the number be 'x'

Apply cross product property

Multiplying positive and negative integers gives a negative integer

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Answer:

Explanation:
The area of each of the 2 equal-sized cakes shall be half of 12 ft²:
The area of a square shape is equal to the side length squared. Naming x the side length, you have the expression for the side length:

Answer:
B.
Step-by-step explanation:
if x is 3 then you just substitue every instance of x as 3. 2(x-4) + 3x - x^2 =
2(3 - 4) + 3(3) - 3^2 =
6-8 + 9 - 9 =
-2
$120 because you multiply 300*40 and get 1200 then divide it to 100 and get $120