Answer: If it is a week, then it has seven days.
Step-by-step explanation:
A conditional statement "if p then q" is a logical statement that is broken down into two parts, one is hypothesis 'p' and the other is conclusion 'q'.
For the given statement "Every week has seven days.",
Hypotheses:-Every week
Conclusion:- has seven days
Therefore, the conditional statement for the given statement is If it is a week, then it has seven days.