Answer:
5
Step-by-step explanation:
9 x 5/9
9/1 * 5/9
Rewriting
9/9 * 5/1
1 * 5/1
5
He would save up to 330 dollars
Answer:
0.25p+20
Step-by-step explanation:
Since there is a set up fee of $20 then you would have to add it to the value of what 0.25p will be. Since p represents every square foot of the walls and you would multiply p by 0.25 every square foot is $0.25 then 0.25p+20 would accurately represent the problem
Answer:

Step-by-step explanation:
When finding the reciprocal of a value, it flips the denominator with the numerator and vice versa.
The number 1 can be represented as the fraction 1/1 and 1 divided by 1 is still equivalent to 1.
Therefore, the reciprocal of 1 will always be 1.