SOLVE EACH SYSTEM BY SUBSTITUTION MUST SHOW YOUR WORK. THIS IS FOR TODAY I NEED ITS ASAP

What is the difference between the points (4, 7) and (4, -5)? a. 0 units b. 2 units c. 4 units d. 12 units

Someone answer this asap for the first five terms of a sequence are shown. 5, 11, 23, 47, 95, . . which recursive function defines the nth term in the sequence for n > 1? a. f(n) = f(n - 1) + 6 b) f(n) = f(n - 1) + 48 c) f(n) = 3 • f(n - 1) + 1 d) f(n) = 3 • f(n - 1) - 4

Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box.