The table below represents the function f.

chart:

x l 3 l 4 l 5 l 7 l 8 l

f (x) l 7 l 15 l 31 l 127 l 255 l

the equation that represents this function is

A. F (x) = 3^x

B. F (x) = 3x

C. F (x) = 2^x-1

D. F (x) = 2x+1

My number rounded to the nearest tenth is 6.4. What might my number be? Justify your answer

Show Work. 1.) 2.4/3.6 = k/1.8 2.) t/0.3 = 1.7/0.9 3.) 7/1.066 = z/9.65 4.) x-3/5 = 6/10 5.) 7/x+9 = 21/36 6.) 10/15 = 4/x-5

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