Answer:
336 plants
Step-by-step explanation:
Area of a right triangle= 1/2•base•height
A= 1/2bh
A= 1/2•7•24
A= 84 yards^2
# of plants= yards^2•4
84•4= 336 plants
Hope this helped! Let me know my math was off of if you have any questions
About $31,200