Answer:
12
Step-by-step explanation:
17 + (-5) =
17 - 5 = 12
This the explanation
Answer:
9
Step-by-step explanation:
Find the factors of each number
18 - 1, 2, 3, 6, 9, 18
36 - 1, 2, 3, 4, 6, 9, 12, 18, 36
45 - 1, 5, 9, 45
The highest common factor is 9. So there is 9 boxes in a pack.
Answer:
x=6.5
Step-by-step explanation:
2x+3=16
2x=16-3
2x=13
x=13/2
x=6.5
Ratio of perimeters is a : b:
21:18
Which reduces to: 7:6
Ratio of areas is a^2 : b^

2:
"7 ^2: 6^2"
Which simplifies to: 49:16
The answer is 7:6 and 49:36
Answer:
C, D, E
Step-by-step explanation: