Ingrid bought a laptop that was 30% off the regular price of $1,050. If a 7% sales tax was added to the cost of the laptop, what
1 answer:
You might be interested in
ANSWER
EXPLANATION
The quadratic equation is:
Group variable terms:
Add the square of half, the coefficient of y to both sides.
The LHS us now a perfect square trinomial:
Take square root:
The first choice is correct.