Twenty cars go past your house during a 5-minute period. at that rate, how many cars will go past your house during a 15-minute period?

60

Step-by-step explanation:

because there is (3) 5's in 15, and there are 20 cars going in 5 min. So that means every 5 min you are adding 20 cars, so by the time you get to 15 that will have got to 60.   (20=5min) + (20=5min) + (20=5min) = 60 cars in 15 min

what?

step-by-step explanation:

what do you need with. i love quadrants. can you tell me ?

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.