Boris is a software salesman. His base salary is $2200,and he makes an additional $120 for every copy of English is fun he sells let p represent his total pay(in dollars), and let N represent the number of copies of English is fun he sells. Write and equation relating to p to n. Then use this equation to find his total pay if he sells 21 copies of English is fun. Equation Total pay if Boris sells 21 copies $