Answer:
see below
Step-by-step explanation:
The domain is [0, 21] ( as its open for 3 weeks) and the range is [0, 400]
B(0) means the balance on day 0 when the account was opened. Its the height of the y axis at
days = 0 It is about have way up to the highest level of B which = 400 so an estimate is B(0) = $200,.
