How would you determine whether time series regression or exponential smoothing is better?

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

100 points? me its important ‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?