Your friend asks you to him with his snow shoveling business and will pay you 3 pennies for the first job. you agree to if he triples your payment for each job completed. after 2 shoveling jobs, you will receive 9 pennies, and after 3 shoveling jobs, you will receive 27 pennies.

complete and solve the equation that finds the number of pennies he will pay you after the seventh shoveling job.

= number of pennies for seventh shoveling job

payment for the seventh shoveling job =
pennies