In the first 7 hours it is open, a bakery sells 19 cakes. The baker expects to sell c more cakes before the end of the day. Write two expressions that model the number of cakes sold that day.
Which two expressions below model the number of cakes sold that day?

Empty box + box + empty box fill in the box is equal to 30 how

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

What is the value of x in the this question ?