Mary is older than John by 5 years .If John is now X years how old is John. ​

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

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9