Shawntee has 21 coins all of them nickel and dimes that are worth $1.70. write a system of equations and splve

15 point ! ~ see if you know the answer to both you!

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

What is always true about a positive integer raised to a negative odd power?