3 necklaces were sold and they have got 45 revenue
Answer:
C
Step-by-step explanation:
The answer is 16x-20. First, you have to distribute 12 and 4 making the equation 12x-48+4x+28. Then, you combine the like terms giving you 16x-20. Hope this helped.
Answer:

Step-by-step explanation:


Acute scalene because they are all smaller than 90 degrees but different lengths