I need help time is running!!

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

Which inequality has a dashed boundary line when graphed ?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?