Answer the following, !
1. jamal has 1,240 songs on his mp3 player, and 40% of the songs are rock songs. how many of the songs are not rock songs?
2. rianda bought 32 apples. she set aside 25% to eat and divided the rest equally among 6 pies. how many apples are in each pie?
3. the math class has a set of 40 calculators, and 85% of the calculators have working batteries. how many calculators need new batteries?