Y = 6.9x + 5.1.....multiply by 10 to get rid of decimals
10y = 69x + 51 ...subtract 69x from both sides
-69x + 10y = 51
It is C because they are both equal in distance.
You just have to divide the miles by the days.
6.41/7=.9157 miles, or .9
Answer:
40
Step-by-step explanation: