Answer:
Step-by-step explanation:
710 miles × (2.5 hours)/(280 miles) ≅ 6.3 hours
1) 2
2) 5
3) 6
4) 0
-2x² + 4x + 2
(1-8x²+3x)+(1+6x²+x)
= 1 - 8x² + 3x + 1 + 6x² + x
= -2x² + 4x + 2 [-2(x² - 2 - 1)]
160
10 x 20=200
10 - 2 = 8
8 x 20 = 160
