Last week tiffany practiced her basson a total of 7 hours. this was 2 hours less than the previous week. how many hours did tiffany practice the previous week?

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.