Answer:

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

Cross-Multiply



Donna's Rate is 
Rico's Rate is 

Answer:
y=0
Step-by-step explanation:
bc if you graph y=0 its parallel to y=4
Angle is 90 degrees, so five-thirds of a right angle is 90*5/3=450/3=150 degrees.
Answer:
A. 5.75
Step-by-step explanation:
11.5/2 = 5.75