If statements possibly being scrubbed?

Projects Programming
7 
 //if (tempF + 5 < target && target <= tempF + 10); 
// if (tempF < target && target <= tempF + 5 ); 
if (tempF + 5 < target && target <= tempF + 10) 
if (tempF < target && target <= tempF + 5 )

You are wrongly terminating these conditionals with a ;