SOMEBODY HELP NO LINKS PLZ AND THANK YOU which function describes the sequence 7,14,28,56 fo n=1,2,3,4.."

A f(n) =7n
B f (n) = 2^n +5
C f (n )= 7x2 ^ n-1
D (n-1)^2 +7

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}

How does a low unemployment rate affect a nation's economy? a. the nation has a higher number of productive resources. b. the nation can spend more money on for unemployed people. c. the nation can save money by paying lower salaries to a large workforce. reset

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