What is 7x2 – 4 + 6x3 – 4x – x4 in standard form? A.–4 – 4x + 7x2 + 6x3 – x4

B.4(–4 – x) + x2(7 + 6x – x2)

C. x4 + 6x3 + 7x2 – 4x – 4

D.–x4 + 6x3 + 7x2 – 4x – 4

Percy rides his bike 11.2 miles in 1.4 hours at a constant rate. write an equation to represent the proportional relationship between the number of hours percy rides, x,and the distance in miles, y, that he travels.