What does the expression n + 3 represent answer choices :
the product of a number and 3
the sum of a number and 3
the difference of a number and 3
the quotient of a number and 3

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