HELP ME PLS!!! If a number is a whole number, then it is an integer.
3 is a whole number
Therefore, 3 is an integer

A. This conclusion was drawn using the law of detachment
B. This conclusion was drawn using the law of syllogism
C. This conclusion was drawn using the law of contrapositive
D. An invalid conclusion was made

A. This conclusion was drawn using the law of detachment

Step-by-step explanation:

Definition:

Law of Detachment

If p equals q and p is also true. Then q is true.

if a number is a whole number, then it is an integer.

3 is a whole number (true statement) , so it 3 is an integer. (must be true)

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.