Antonio did some chores for his mom. She gave him $7.00. Then he bought a
game costing $12.89. If he has $3.90 left. how much money did he have before doing the chores to earn extra money?

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?