5x+3y>_ 9
^
This sign is supposed to be greater than Or equal to. Sorry.

Which of these choices show a pair of equivalent expressions?

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]

Which statement justifies why angle ebc measures 90?