The sales tax rate in new york city is 8 1/4%. how much city sales tax would be charged on a purchase of $428.86? what would be the total cost of the purchase

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?