Answer:
C
Step-by-step explanation:
If the cost is represented by n, why would you subtract the cost of the notebook by 0.78 while multiping it witht the cost?
Which variable are we solving for?
For y:
y= 5x-4/ 13
For x:
x= 13y+4/ 5
15minutes / 2miles = 7.5 minutes to run a single mile.
7.5minutes * 5miles = 37.5minutes
37.5minutes to run 5 miles
7 pieces x 9 inches long = The ribbon was 63 inches long.