Part A Write all steps required
Solve the equation x^2 + 12x - 28 = 0) by completing the square, and give the solution or solutions.
Part B
Explain what value or values of c make the equation x^2+12x+c=0 have one and only one solution. Justify your answer.
Enter your answer and your justification in the space provided.

Which of the following graphs represents the function f(x) = 2^x

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?