Answer:
-3x^2+17x-20
Step-by-step explanation:
(3x – 5)(–x + 4)
-3x^2+12x+5x-20
-3x^2+17x-20 is your simplified version
(3x)(–x) + (3x)(4) + (–5)(–x) + (–5)(4).
-3x^2+12x +5x -20
-3x^2+ 17x -20
b) 8.5 feet
B
