It will take 50 weeks for Shannon to have $450 on her account.
Step-by-step explanation:
Since we know that she already has $50 in her bank account we know that in order for her to have $450 she needs to put extra $400 (450 - 50 = 400). Now in order to find out how much weeks will it take we just need to divide the number of dollars that she still has to save by 8 (since she puts $8 each week), and so we get.....
