2 = 25%. 25% also means 1/4. So, it is a quarter of something. So. So find 100%, you have to multiply 2 by 4. 2 * 4 = 8. Roman has 8 pencils in his backpack.
Step-by-step explanation:
is the 9 in power ?
post a pic of the problem it will be easier to help you without a mistake
Earlier snow depth = 2 feet
later snow depth = 1.6 feet
change
2 - 1.6
0.4 feet
percentage change
(0.4 / 2) * 100
20 %
Since
is a group,
•
has an identity element
such that
for all 
• there is an inverse
for every
such that 
• for any
, we have the associative property 
a) Given that
, we have

Since
, which means
, we get that

Then

as required.
b) What do you mean by "rank of an element in a group"? That doesn't sound like a standard concept as far as I know.
Answer:
45
Step-by-step explanation: