Answer: 150
Explanation:
Let x be the total number of cans that was students' goal.
Given : Students collected 600 cans for the canned food drive that was 80% of their goal .
We can write 80% as 0.80
Then, we have

Thus, The students' goal of collecting cans for the canned food drive = 750 cans
Now, the number of food cans required to collect to reach the goal= 750-600=150