To find the midpoint of a line use the midpoint formula which is M = (x1+x2/2 , y1 +y2/2) After plugging in the coordinates for your variables you should get (-1+5/2, -1+2/2) This simplifies to (2, 1/2) which is the coordinates for the middle point of the base XY.
Let x be the number of square feet to be mowed
215 square feet take 22 minutes
x square feet take 12 minutes
145 divided by 7 =20.71
a little sketch on my answer <span />
Answer:
to the full amount
Step-by-step explanation: