WILL GIVE BRAINLIEST Correct answers only for this question, no links please.

What is the correct graphing of the given system of equations.

y − 2x = −1

x + 3y = 4

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)