(1 point) Evaluate the limit x2 - 2x - 24 lim X-6 x - 6 Enter I for co, -I for -co, and DNE if the limit does not exist.(1 point) Calculate the following limits by direct substitution. lim (a + 7 ) 4 a--10 a+1 lim (6 - y)(12 + 1)3 = y--1 lim 2x3 - 4x - 10 = x-3 lim (1 - t) (t+5) = t-5 3t - 7 lim y' (5 - 3)2) = y- -2 lim 3(x2 + 12) = x-0