Answer:
she purchased 6 first class tickets and 2 normal tickets
Step-by-step explanation:
the area of the surface of this design is 31 in long
If we were to draw a best fit line, the y-interest would be near 15, and the slope would be negative.
In the options given, the slope is either -3 or -13. If we imagine a line through the plotted points, the rise would be about 15 while the run would be about 5. This means the slope is about -3.
The best answer is y = -3x + 15
-3 2/5 - 5/6 = -127/30
-2/3 + 6 1/8 = 107/24