Awizard has five friends. during a long wizards' conference, it met any given friend at dinner 10 times, any given pair of friends five times, any given threesome of friends three times, any given foursome two times, and all five friends together once. if in addition it ate alone six times, determine how many days the wizards' conference lasted.

i know the answer is 27 days, i just don't understand how to get that answer using inclusion/exclusion

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

it has changed from the width and the height.

step-by-step explanation:

r and t.

both are 64 degrees.