Help plz Natalie practices the flute 4 days per week. She practices 4/5 hour each day.

How many hours does she practice the flute each week?

Enter your answer as a mixed number in simplest form by filling in the boxes.

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b