What is 48,978 written in scientific notation?
a. 4.8978 x 10
b. 4.8978 x 10
c. 4.8978 x 10
d. 48.978 x 10

100 points, hi, i’m not sure how to get the equation from the graph and table.

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?