Answer:
The least number of stamps required is 
Step-by-step explanation:
Let the number of
cent stamps be
and
cent stamps be 
We have

The minimum number is obtained when more
cent stamps are used
Here
cannot be greater than
since 
Substitute 

Not possible since
is not a fraction
Substitute 

Not possible since
is not a fraction
Substitute 

Possible
Hence minimum number of stamps is

Answer:
53
Step-by-step explanation:
5+3=8, 53 flipped is 35, and 53-35=18
Answer: L, J, K
Step-by-step explanation:
L, J, and K are collinear because they all lie on the same line.
That is, log x = k if and only if 10 k = x.
Answer:
1. -15c - 4
2. 3x - 5
3. 14q
4. -195 + 39m
5. 55b + 130
Step-by-step explanation: