Tyler bought a shirt from the 25% off rack. It normally costs $16. Here is the money he paid. A ten dollar bill and two one dollar bills Why did he pay $12?

If i have one apple and give you the apple, how many apples do i have?

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 (%)

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?