The sum to first n terms of a series S = 3n+4n². Show that it is an A. P

What is the range? can’t seem to find it out

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex

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.