Answer:
10 hours
Step-by-step explanation:
multiply b 2 then divided the miles and time and add to the total to get the time and miles you need
c+20=72
-9
you'd add 2 to the -11 which would equal -9 and leave you with x=-9
Slope = 3/7
y - intercept: y = -3
x - intercept x = 7
