When taking a 12 question multiple choice test, where each question has 3 possible answers, it would be unusual to get or more questions correct by guessing alone.

It would be unusual to get 4 or more questions correct by guessing alone.

Step-by-step explanation:

You have a 1 in 3 probability(there are three choices) of guessing the correct answer for a single question. You have 12 opportunities to guess.

So, the probability will be = = 4

Therefore, it would be unusual to get 4 or more questions correct by guessing alone.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)