Your answer would be C.
He did not go insane
Answer:
-200 | -500 | -500-(-200) | -300
-200 | -0 | 0 -(-200) | 200
Step-by-step explanation:
$9
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
