A salesperson at a jewelry store earns 4% commission each week. Last week, Heidi sold $680 worth of jewelry. How much did she make in commission? How much did the jewelry store make from her sales?

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

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

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?