please answer questions 1 and 2

Given that lim f(z) = 2, lim g(z) =7, lim h(z) = 2 z-+a I-a Evaluate the following limits. State if the limit is positive or negative infinite by entering Infinity. Otherwise, type DNE when the limit does not exist. a. lim 2f(z) + 3g(z) = I-ta b. lim (f(z) . g(z) . h(z) ] = I-ta C. lim $623 + f ( 2) = Ital Consider the following graph of a function. 2 -6 -5 -3 0 X y - 2 3- Select all values of r for which the derivative of the function exists. 0 1=-1 0 1=-2 0 1=-3 O z=-4