Parker wants to buy premium headphones that cost $199. He earns $50 per week mowing lawns. If he saves $20.50 per week from his earnings, how many weeks will it take for him to save enough money to buy the headphones?
it will take 10 weeks because 20.5x10=205 and if he only saved for 9 weeks he wouldn't have enough and if he saved for 11 weeks, he would've already had enough the week before