2. ebony’s bank balance first reached $400 on day 4. the last day her balance was $400 was day 8.

(a) determine . explain how you determined these amounts.

(b) estimate . explain how you determined these amounts.

(c) 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?