Amount that trouvaughn paid : $0.80b
ten dollar bill = $10
so $(10-0.80b)
Answer: C.
Step-by-step explanation: I used m.athway
X = tuna, y = BLT
x + y = 30
6x + 9y = 240
3y = 60
y = 20
x = 10
20 BLTs for $2.50, 10 tuna for $1.50
Answer: I am pertty sure it is the letter "D".
