The row-echelon form of the augmented matrix of a system is given. find the solution of the system.

[1 0 -1 3]
[0 1 5 -4]
[0 0 1 1]

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.

Given abcd ac=38 and ae=3x+4 find the value of x

10 points? me . its important ‼️‼️