BELLOW
Step-by-step explanation:
If Brian's dad agreed to advance him his allowance, the number of weeks of allowance Brian would need to buy his bike depends on the amount of his allowance and the cost of the bike.
Let's say Brian receives an allowance of $10 per week, and the cost of the bike is $100. In this case, Brian would need 10 weeks of allowance to buy the bike. This is because $10 x 10 weeks equals $100, which is the cost of the bike.
If Brian's allowance is different, for example $5 per week, he would need 20 weeks of allowance to buy the $100 bike. This is because $5 x 20 weeks equals $100.
In summary, to determine the number of weeks of allowance Brian would need to buy his bike, divide the cost of the bike by his weekly allowance. This will give you the number of weeks needed.