How do you do this I really need some help!please ​

It is correct for 5. Incorrect for 6. Lastly, correct for 7.

yes

no

yes

Step-by-step explanation:

you plug in the 3 into the x, because x=3 so therefore 3+5>7 which becomes 8>7. Is 8 more than 7? yes! so its true. For the next, 7>12, thats not true. And for the last one, 10-7<5, so 3<5, which is true.

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.