Nice handwriting!
I am not sure if these answers are correct, but it is what I would probably put. 1: 10(a+4) is less than or equal to 25. A is "a number". 6: 5 is less than or equal to half times a number plus 1 , half of a number plus one is larger than or equal to 5, or maybe half times a number plus one is larger than or equal to 5. I hope that helps!