What is the slope of -1, 1

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?