The friend runs 120 miles in 6 weeks
Your run 120 miles in 8 week
Up you can see that by looking at the x and y axis
Your friend runs about 10 more miles than you each week
A. is correct kkkkkkkkkkkkkkkkkk
He needs 6 litres of the 20% and 2 litres of the 60% a simple trial and error method will do in this type of equation
Slope is a number in front of x, so slope is (-2)
y-y1=m(x-x1)
y-5= -2(x+5)
y-5= -2(x-(-5))
so y1=5, x1=-5, a point is (x1,y1), so the point is (-5,5)
There are 8 choices for the first painting on the wall, 7 choices for the second, and so on, down to three choices for the sixth. Our result is thus 8*7*6*5*4*3=20,160. C is the correct answer.
