The number of players of an online game triples each week. the function f(x) = 3^x represents the number of players in week x. when are there 81 players?

The equation to use here is 3^x = 81. You could start to try numbers, and you would realize that x = 4 weeks.

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

a. she will receive a refund of $278.

step-by-step explanation: