To set the equation,we can first find how much price would be raised within a year:
=500×(1+7%)
=500×1.07
As the years go by the increase would accumulate,and the equation would be:

Hope it helps!
Answer:600g
Step-by-step explanation: 50x3=150 150x4=600 since 30x4=120
Answer:
48.4 hours
Step-by-step explanation:
Time = Distance/Rate