Answer:
14x+21
Step-by-step explanation:
7*2x=14x
7*3=21
14x+21
hope this helps :9
They will make the same amount after 10 phones sold. Before that Plan A is the better plan. After 10, Plan B is the better plan.
You can find the point of intersection by modelling the two equations and setting them equal to each other. If x is equal to phones sold:
250 + 25x = 50x
250 = 25x
10 = x
Therefore, you make the same at 10 phones.
The perimeter is 16.2. Let me know if you need me to show you how I got this
