Ebony’s bank balance first reached $400 on Day 4. The last day her balance was $400 was Day 8. Determine B(5), B(6), and B(7). Explain how you determined these amounts.
B(5)=B(60)=B(7)=400
Estimate B(1), B(2), and B(3). Explain how you determined these amounts.
B(1)50*1+200=250
B(2)50*2+200=300
B(3)50*3+200=350
Jade said that the amount of money Ebony took out of her account each day between Day 8 and Day 12 was the same amount of money she put into her account each day between Day 0 and Day 4. Recall that Day 12 is when the balance first reached $0. Without doing any calculations, how could you show Jade why that cannot be true?