Always true because when you solve it out you end up with 7x-8<7x+13 and then you subtract the 7x from both sides and you get -8<13 and -8 is less than 13.
Answer:
On problem one the answer is 4 but I'm not sure about the second problem
Answer:
The choice two

Step-by-step explanation:

Find the area of the whole rectangle and find the area of the not shaded part and then subtract them to find the are of the shaded part.
Area of whole: 10 * 6 = 60 cm²
Area of non shaded: 6 * 2 = 12 cm²
Area of shaded part:
60 - 12 = 48 cm²
Hope this helps :)