Simply add all of it together.
13+6=19
19+8=27
27+7=34
34 is the perimeter
1.
8 < x(7 - x)
We can now substitute the given values to see which one satisfies the inequality.
8 < 2(7 - 2)
8 < 10
A is the correct answer.
2.
D.
This lists all of the factors of 24.
Although your -3 point is correct you need to graph the other point on (3,1) rather than (3,0)
so change that.
Answer:
175731 is one of the answers of the 6 digit number
some others are:
275732
375733
475734
575735
675735
775734
875732