McKenna is saving up her money to buy an iPad that cost $$475.99 right now she has $196.00 and can say $45.00 each week. How many weeks will take for McKenna have enough money to buy the iPad.
McKenna needs $475.99 - $196 = $279.99 more to buy the iPad.
She saves $45.00 each week.
Therefore, McKenna will need $279.99 / $45 = 6.22 weeks to have enough money to buy the iPad.
Since she can only save whole weeks, it will take McKenna 7 weeks to save enough money to buy the iPad.