Answer:
1. 4<7
x7 x7
28<49
x6 x6
168<294
x3 x3
504<882
x10 x10
5040<8820
2. 11>2
+5 +5
16>3
+3 +3
19>6
+-4 +-4
15>2
3. -4<-2
-6 -6
-10<-8
-8 -8
-18<-16
-2 -2
-20<-18
4. -8<8
div. -4 div. 4
2<-2
div. -2 div. 2
-1<1
5. In the above operations they did not effect the inequality sign because the same operation is being done to both sides. The inequality sentences all remained true.
Step-by-step explanation: