The following are true about a square of a binomial except a. it last term is always positive
b. it's first term is a perfect square
c. it is a polynomial with three terms
d. it's middle term is always negative

B. ITS FIRST TERM IS A PERFECT SQUARED ITS MIDDLE TERM IS ALWAYS NEGATIVE.

D. It's middle term is always negative.

Step-by-step explanation:

A square of a binomial (perfect square), means that the two binomial terms are the same. Therefore, both terms will include either a double positive (which would result in a positive answer), or a double negative, (which, by the law of multiplying double negatives, would result in a positive answer).

Therefore, D will be the correct "incorrect" answer.

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square root of 36/6 = 2.449489743

square root of 16/6 = 1.632993162

square root of 6 = 2.449489743

the answer is square root of 16/6 because the square root of 36/6 is the same answer as square root of 6 = 2.449489743

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads