Answer:
The last one :{(5, 0), (0, 1), (5, 2), (4,4)}
Step-by-step explanation:
<h3>
System of equations.</h3>

Put (1) to (2):

Substitute the value of x to (1):

Solution:

Step-by-step explanation:
357-200 is 157 extra minutes (we are only counting the extra minutes)
157*0.25 is 39.25 (this is how much is the extra minutes in total cost)
therefore, add 39.25 and 29.99
29.99+39.25 is 62.24
Therefore, the total bill was $62.24
hope this helps :)
Have a nice day !
Step-by-step explanation:
According to the given diagram,
By exterior angle property,
x=46°+30°
x=76°