Answer:

Step-by-step explanation:
Donna's Rate is 
Rico's Rate is 

Cross-Multiply



Donna's Rate is 
Rico's Rate is 

Answer:
total - given, 360 -139 = 221
Answer:
N= 8
Step-by-step explanation:
Y=x/5
divide 5 on both sides, this is as far as you can simplify the equation with the information given
Answer:
-7
Step-by-step explanation:
-7 is the number that is attached to the y. It is the coefficient. Another possible coefficient is 1, but you do not need to write it, as anything multiplied by 1 is equal to the original number.
Hope this was helpful! Let me know if you have any further questions. :)