X = low-energy lamp
y = high-energy lamp
1) 4x + 5y
2) 120= 4x + 5y
Answer:
46
Step-by-step explanation:
230 divided by 5
Answer:
negative because the container is losing liquid.
Step-by-step explanation:
y-5x is the rate
Answer:
There is no box
Step-by-step explanation: