The answer is N<span>≥ 178. I just had this question and that was right.</span>
Answer:
C
Step-by-step explanation:
When she first noticed the problem
Her total profit is 3
Step-by-step explanation:
1.50 x 30 = 45
to find total profit - 45-42= 3
Answer: C
Step-by-step explanation: It’s C , I had the same question.
Answer:
The solutions are
and 
Step-by-step explanation:
we have

Divide by
both sides
------> 
we know that
The formula to solve a quadratic equation of the form
is equal to

in this problem we have

so

substitute





