In the box, type in the number that will correctly complete the sentence.

ariana had 12 new pencils. if she gave 3/4 of them away, she had answer
pencils left.

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

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

What is the value of x when x + 7 = 21?