Julio collected a total of 49 shells in 10 days at the beach. He collected x shells in the last 5 days. If Julio collected 3 shells in the last 5 days, how many shells did he collect in the first 5 days at the beach?
49
:he collected 46 shells in the first 5 days.
a.
b. 49 - x; he collected 46 shells in the first 5 days,
C.
49 + x; he collected 52 shells in the first 5 days.
d. 49x; he collected 52 shells in the first 5 days.