Sagot :
Answer:
21÷3 =7
Step-by-step explanation:
in this equation it has a given which is;
-three peices
-1.00 pesos
-21 peices and
-7.00 pesos
so if you want to find if it is corect just devide the 21 into 3 and you will get the answer 7 so 21÷3 =7 that is why 21 peices of pad paper is cost of 7 pesos