When the slopes of two lines are equal,they are parallel.

so the equation of the parallel line to this one is :

hope this helps
Mean number simply means average.
Answer:
198 mpg
Step-by-step explanation
28,1760-27,8295 = 3465 miles
3465miles/17.5gal = 198 mpg
Y = 7(15 + x) Use the Distributive Property
Y = 105 + x Subtract 105 from both sides
Y - 105 = x Switch the sides to make it easier to read
x = Y - 105