Answer:
assuming you're looking for an expression, it would be written as "6x+3".
(9.69 ¢/km)*(7580 km) = 73450.2 ¢ = $734.50
He has ran 4.5 miles at the end of 6 days.
Using synthetic division to divide
x³ + 2x² - x - 2. Since (x + 1) is the factor, we can divide by -1. See the attached file for the synthetic division. After that, we are left with x² + x - 2. This can easily be factored into (x + 2)(x - 1). The remaining factors are (x + 2) and (x - 1).