Answer:
50 estimate
47.9 accurate amount.
Step-by-step explanation:
If the question says estimate, then that's what you have to do -- estimate. That means you put your calculator in a drawer and NO cheating.
Suppose that the total is 450. You've only added 19 cars to the total. That's not very much -- just two cars per lot more (about)
450/9 = 50 because 45/9 = 5
So each lot has about 50 cars in it. Â HMM. Just how close is that? Now and only now you get to check it out. My calculator tells me it is 47.9 which is out by very little really.