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

Y - 5 = -1/2(x-1)
hope this helps!
Answer:
p < 0
Step-by-step explanation:
Given
- 3(p - 7) > 21
Divide both sides by - 3, reversing the symbol as a result of dividing by a negative quantity.
p - 7 < - 7 ( add 7 to both sides )
p < 0
6 because 5-2=3 and 3+3 is 6
Answer:
6 lunch tables
Step-by-step explanation:
Since one lunch table can hold 10 students and 60 students are needed to hold,
60 ÷ 10 = 6 lunch tables