Which of the following statements about jk and jl is true?

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

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 (%)

Type the correct answer in each box. spell all the words correctly, and use numerals instead of words for numbers. if necessary, use / for the fraction bar(s).