A parallelogram ABCD , with I as the middle point of AC and EF is a line that goes through I. Show that IE=IF.( sorry for bad English)

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Multiplying fractions by whole number 5 x 1/3=?

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