3/25 as a decimal cause i don't understand it

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

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.

Describe the graph of 3x+2> 2 and 3x< 6