Cristiano is saving money to buy a bike that cost $189. He has saved $99 so far so far. He plans on saving $10 each week. In how many weeks will he have enough to buy the bike? Use a bar diagram to solve arithmentically. Then use an equation to solve algebraically. SHOW YOU WORK.... can someone plz help me i need this done fast and quick not trying to be pushy i just really need help .... plzzzzzz help