Answer:
a
Step-by-step explanation:
The Answer is:
3x^2-2x-8
180 plants
the area of a right triangle is: ab/2
side a = 8
side b = 15
8 x 15 = 120
120/2 = 60
Michael wants 3 plants for every square yard (multiply by 3)
60 x 3 = 180