Which of the following options correctly describes the graph below? a. piecewise function b. greatest integer function c. 'many-to-one" function d. 'one-to-one" function

Darcy deposited $390 into a savings account. as long as the account balance remains at or above $150, she does not have to pay a service fee for the account. for how many months can she withdraw $40 a month without having to pay service fees? a) 3 b) 5 c) 6 d) 9