The old photocopier can make x manuals in an hour. The new photocopier can make 4x. Combined, they made 5x manuals in an hour.
In one hour they can make 1/28 of the manuals.
1/(28*5)=1/140 is the rate.
The new photocopier can make all the manuals in 4/140 or 35 hours.
The old one can make them in 140 hours.
Answer:

Step-by-step explanation:
First place 3 as a mixed number = 3/1 then simply divide you get 7/18
You just do 36*.25=9
Then 36-9=27
$27 is your final price
Hope this helps!
Please crown;)
4/7. Divide the numerator and denominator by 15.