Answer:
Greg worked more than 20 hours.
Step-by-step explanation:
Let's solve the inequality for 
so we know how many hours Greg worked:
Step 1. Subtract 25 from both sides of the inequality
Step 2. Divide both sides by 14
We can conclude that Greg worked more than 20 hours.
2x+10=3x-15
25=x when simplified
Cat= 6kg
Dog = 6kg + 22kg
Total weight = 6kg + 6kg + 22kg
Total weight = 34kg
Notice the picture below
now, we know their perimeter are the same for both
thus 4(a+4) = 6a
solve for "a"
The anwer is b because you can multiply or subraction from it
