A___equation can be written in the form ax2 + b3 +c= 0 where a, b, and c are real numbers, and a is a nonzero number.

A. linear
B. quadratic
C. cubic
D. quartic

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.