You want to know the brand of jeans worn mostly by people to 20 to 30 years old. which of the following surveys is biased?

The survey that is biased is surveying people 20-30 years old at a store that only sells one brand of Jeans as it would influence results.

The correct answer is:

A) surveying people 20 to 30 years old at a store that only sells one brand of jeans.

The survey is about jean brands, not about jeans. It's undoubtedly the first option.

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

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step-by-step explanation:

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