Jada is getting ready for her school's pep rally next week. She grabbed a roll of ribbon and cut an 18-inch piece from the roll to make a bow for her hair. She used the rest of the ribbon to decorate posters for the pep rally. Let r represent the length, in inches, of the roll of ribbon to start. Which inequality models the story?

a orange at the grocery store idk what other product that could be

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.  

i think its 7.6

if so your welcome