Which Function is represented by the Graph

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.