You are on the 2nd floor, go down 3 floors, and back up 7 floors. On what floor are you on now? *

6th floor

Step-by-step explanation:

2-3+7

-1+7

6

Movement in this problem can be thought as addition or subtraction. Going up a floor means taking your current floor and adding one. Same with going to a lower floor but with subtraction.

The first movement is going down the flight of stairs to reach the 2nd floor - 3.

Why are we using subtraction? Because we are going to a lower level.

2nd floor - 3 = -1 floor or some might consider this the basement.

Now, the next movement is going up 7 floors. This is going to be easy since we know what to do.

-1 floor + 7 = 6th floor

Hope this answer provides a clear explanation!

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²

answer: the four apples you took away.

step-by-step explanation: