Answer:
Visit geogebra.com
Step-by-step explanation:
none needed <3
Answer:
63
Step-by-step explanation:
Answer:
$9
Step-by-step explanation:
The breakfast before tip costs x.
The tip is 20% of x.
The tip is $1.80.
20% × x = 1.80
0.2x = 1.8
x = 1.8/0.2
x = 9
Answer: $9