1) What mistake did I make? 2) What suggestion would you give me to avoid making that same mistake in the future?

If you could answer these your a life saver

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a

Pleting the square f the given find the x-intercepts of the parabola with vertex (-5,13) and y-intercept (0, 12). write your answer in this form: (14,.99). if necessary, round to the nearest hundredth. *- h enter the correct answer, de verter, and ametry 00000 done doo