Answer:
40
Step-by-step explanation:
6+7=13
13+8=21
21+9=30
30+10=40
Answer:
r<2
Step-by-step explanation:
3r+4<10
3r<-4+10
3r<6
r<2
Answer: 7 and 8
Step-by-step explanation:
The square root of 7 is 49 and the square root of 8 is 64
52 is in between the 2 consecutive integers 7 and 8