9(m+2) - 6(2 + m) and 3m + 6 steps please might not let me see answer help

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Find the smallest number by which the given number should be divided to make a perfect cube(with steps or the answer will get reported) a.108 b.2187

What is the measure of angle x? a.101 b.158 c.44 d.79