It would be r,o beacuse of the grid cordinates in the sentence
Answer:
$9.00
Step-by-step explanation:
Given that $1.8 is 20% of the breakfast cost.
-We can use proportions to find the 100% cost of the breakfast before the tip.
-Let x be the full breakfast cost:

Hence, the full breakfast cost is $9.00 before the tip.
THE STEPS AND ANSWER IS IN THE PICTURE
I believe it’s 20, hope this helps!