He had a profit of $2. Made a $1 each time he sold it.
Answer:
a = - 3
Step-by-step explanation:
The equation has common factors x(x + 3) on both sides
For the 2 sides of the equation to be equal, then the factor
(x + a) = (x - 3) and by comparison
a = - 3
The distance is 12.041594578792295. Round to 12.0
