Respuesta :
A and B are correct because they are self-explanatory. C is also correct because.
2 +5A - toothbrush batteries + clock batteries
22-2+5A - subtracting the sum and using factoring
20+5A
5(4+A)
A = 4 -Batteries for each clock
2 +5A - toothbrush batteries + clock batteries
22-2+5A - subtracting the sum and using factoring
20+5A
5(4+A)
A = 4 -Batteries for each clock