For EACH ordered pair, determine if its a solution to 2x+9y=13 (4,-5)
(-7,3)
(-8,0)
(2,1)
2x+9y=13

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 (%)

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p.mc) knowing that it is going to rain tomorrow, and going to bed before 9 p.md) knowing that you have a test in school tomorrow, and studying thw night before