An arithmetic sequence is represented as 5 , 9 , 13 , with the nth term represented as 4n + 1. write a formula to represent the sum of the first n terms.

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Simplify (2^5/3^2)^4 a. 2^20/3^8 b. 2^9/3^8 c. 8^5/12^2 d. 2/3^2