Jimmy has 11 songs at the start of the day. he purchases 4 songs per day. write the rule for the total number of songs as a function of the number of the days.

Asoftball team played ten games, scoring 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 runs. they lost by one run in exactly five games. in each of their other games, they scored twice as many runs as their opponent. how many total runs did their opponents score?