I don't understand this question can someone help me with this please, please explain!! and thank you for the help!! If u dont know try your best :D

Answer:
Its basically asking how many pennies there are.
The answer is 37.5=2.5x because x represents the number of pennies while 2.5 represents the weight. Hope this helps!
x=15, by the way.
Step-by-step explanation: