The dollar amount of the discount is 440 - 154 = $286.
Therefore the percentage discount for the sale is given by:
The volume should be l(w)(h)= v so 6.3(14.7)(8.4)=29.4 in
X^2 + 2x = -1......take half of ur x term (2x), and square it. So we take half of 2, which is 1, and square it....1^2 = 1....so u would add 1 to both sides
18x
Simple as that. 18 times however many times she cuts the grass