Im not sure how to solve it sdfjhbgjk

The table shows a pattern of exponents. what is the pattern as the exponents decrease?

What is the nth term rule of the linear sequence below? 27 , 25 , 23 , 21 , 19 , . .

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.