Using a euler circles to decide if the argument is valid
all cars use gasoline.
all things that use gasoline emit carbon dioxide.
some cars have four doors.
∴ some things with four doors emit carbon dioxide.

The argument is valid

Step-by-step explanation:

The explanation will be given in the image, where we see all propositions and which contains the other, showing that the argument is valid.

Yuh yeet honestly idk

32

step-by-step explanation:

these are your clues: 1. kim ran 18 races2. this was four fewer races than twice thenumber, notice it says twice the number, so you would do the equation 18x2-4; which equals the number 32.thus, 32 is your answer.