Solve the system of equations by transforming a matrix representing the system of equation into reduced row echelon form. 2x+y−3z=−19 x+2y+z=−4

x−y+5z=21

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.

Find the commission on a $590.00 sale if the commission is 15%.

Combine like terms to make a simpler expression 3z+z