A 9-pack of notebooks costs $3.87. What is the unit price?

$0.43

Step-by-step explanation:

First, we must divide $3.87 by 9.

Hope this helped :)

Please mark brainliest if it helped.

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

sounds & other waves originate from any vibrating object