I WILL GIVE BRAINLIEST PLEASE HELP

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

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

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.