Scientists at the CDC have identified 7 zombies that were spotted at the source, West Jordan, Utah, of the outbreak 2 days ago. Since then, 14 zombies were reported yesterday, and so far 28 zombies have been sighted today. Write an equation to model the number of zombies after n days. Use this table to help you:
options:
f(n)=7(2)n
f(n)=7+2n
f(n)=2(7)n
f(n)=7n+2