Answer:
Undefined
Step-by-step explanation:
= 
You cannot divide by zero making the slope undefined
Answer:
a) Empty set
b)
Step-by-step explanation:
Roster form is a comma separated list form of set.
a) The set of natural numbers x that satisfy x + 4 = 1.

Thus, x is an empty set.
b) set-builder notation for the set {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}.
We use x to represent this set. Now x belongs to natural number and is less than equal to 12.
Thus, it can be written as:

I don’t think you have to worry about it because you
There is no name for this triangle....
None of the triangle has <span>interior angles each measure 90 degrees
</span>
To find the discount, multiply 60 by .2, which is 12. Now subtract 12 from 60. The trousers should cost $48 now because the cost has been reduced by 20% of 60, which is $12.