Posted by John on Tuesday, September 2, 2008 at 5:15pm.
Yes, "a plan" means one plan.
All are grammatically correct. The first sentence refers to more than one plan, but doesn't give a specific number. The second sentence refers to one plan. The third sentence refers to two plans.
=)
Related Questions
Algebra2 - The cable company has two plans: Plan 1- Flat fee of $45 a month Plan...
English - 1. The President is to visit China next month. 2. The President is ...
English - 1. I will visit my grandparents next month. 2. I intend to visit my ...
math - You need to choose between two phone plans for local calls. Plan A ...
English - When is Diego's school's anniversary? 1. It will be next month...
math - The last week of the month a car dealership sold 12 cars. A new sales ...
math - Jamia is deciding between two long-distance telephone plans: Plan ...
Elementary Algebra - I need help setting this problem up? AT&T one rate ...
Math - you're setting sales goals for next month, you base your goals on ...
ALGEBRA - A telephone company has a choice of two plans. Plan A - $30 per month...
For Further Reading