Hello there, does anyone know the answers to these questions?? Would appreciate an answer. Thanks in advance ^^

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

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.

Jim had 15 minutes to do 5 laps around his school what would his time be