Because it specialises the groups that go into the number.
The first 3 rows are proportional
because when you divide the earning by car washed they all have the same unit rate of 9.5/ to answer the second part you multiply 9.5 by 88. you'll get $836
Answer:
D
Step-by-step explanation:
because the line has to run through the origin, so that is non-proportional.
hope this helps!
Answer:
x=27
Step-by-step explanation:
-4x+4=-3x+31
4=x+31
27=x
