Marcie is a student in your fifth-grade class, and her best friend tara is in the classroom directly across the hall from yours. marcie often gets up and goes to the doorway to ostensibly use the pencil sharpener, which is located near the door, or to throw something away in the garbage can (also located near the door), but you know she's hoping to catch a glimpse of tara. you suspect that tara is doing the same thing in her room, because you see her at the classroom door frequently. knowing what you know about marcie and tara, which of the following actions on your part makes the most sense? a. visibility.
b. accessibility.
c. distractibility.
d. differentiation.

The correct answer is option C: Distractibility is what is going on between Marcie and Tara.

Explanation:

A way to solve this distraction  is by moving the sharpeners to a different place so they do not see each other through the window and they can sharper their pencils without having many distractions.

substitute y = 2x - 4 to x + 2y = 12:

x + 2(2x - 4) = 12     use distributive property

x + (2)(2x) + () = 12

x + 4x - 8 = 12     add 8 to both sides

5x = 20     divide both sides by 5

x = 4

put the value of x to the first equation:

y = 2(4) - 4

y = 8 - 4

y = 4

the cost of attendance or coa is an approximate budget for the cost of attendance of the whole academic year. in order to calculate this, universities take into consideration many factors like room and board, tuitions and fees, books, transportation and personal expenses such as medicine, laundry, clothing. all these factors combined make up the final sum to the cost of attendance in each university.