PLS HELP I JSUY WANT TO KNOW PLEASE Darlene wrote this proof of the identity (x + y)^2 - (x - y)^2 = 4 xy. Which of the
following is a justification for Step 5 of her proof?

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

The graph of a hyperbola is shown. what are the coordinates of a vertex of the hyperbola? (0, −4) (−3, 0) (0, 0) (0, 5)