Mrs. smith paid $125 to have her hair colored and cut. if she tips her hair dresser 15% of her bill, how much was the tip

Ineed to learn how to solve this problem

(30 points). the population of a city is 45,000 and decreases 2% each year. if the trend continues, what will the population be aer 15 yrs

Ben works in his dads bakery packing bagels each package can have no more then 16 bagels 3/4 of the bagels in each package are plain what other fractions could represent the part of the bagels in each package that will be plain