Order .5, 1/5, .35, 12/25, 4/5 least to greatest

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

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.