Beth had $24 to spend on five avocados. after buying them she has $4 how much did each avocado cost?

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]

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

Need on this one asap im almost done with this subject