It's be 21. There's not much to explain, but 7 times 3 is 21, so the box would have to be 21 for it to be true.
Answer:
ether:
y= 1/3 = 0.333
OR
y= 3/2 = 1.500
Step-by-step explanation:
a) False. There are three factor pairs for 36:
1×36
2×18
3×12
4×9
6×6
b) True.
18 = 2×3²
Odd divisors of 18: 1, 3, 9
1+3+9 = 13
c) False
100 = 2×5²
25 = 5²
Greatest common divisor = 25
