The amount of seed needed for a landscaper to cover a lawn is shown in the table. Decide if the relationship between the amount of
seed and the area it covers is proportional.

Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove