Should school weeks be shortened to 4 days evidence: examples

No because it could lessen the learning. 5 days would be perfect. if just 4 days, the learning we get is less and concepts wont be cleared. it could be harder during exams too. students are more likely to study at school with their group of friends than at home being alone.

The answer to the question is gold

343^x = 49^4-xx = 4-xx+x=42x = 4x = 4/2x = 2therefore x = 2