40% because if their are 5 colors of equal amounts, than each one is 20% amd if you try and get 2 then you multiply %20 by 2 and you get %40
How to:
a+b-mx=0
a+b=mx
(a+b)/x=m
The ratio 12:20 because you need it to be equal to 3:5. 3 times 4 which makes 12 so you need to multiply 5 with 4 too
T=16x+96 so if he wants to receive 130$ a day he must work at least 3 hours of over time.
