Answer:
You can tell if a table is linear by looking at how X and Y change. If, as X increases by 1, Y increases by a constant rate, then a table is linear.
Answer:
The relationship between the circumference of a circle and its diameter represent a direct variation and the constant of proportionality is equal to the constant 
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form 
where K is the constant of proportionality
In this problem we know that
The circumference of a circle is equal to

therefore
the relationship between the circumference of a circle and its diameter is a direct variation and the constant of proportionality is equal to the constant 
Answer:
A
Step-by-step explanation:
7x/2 = 3
7x = 6
x = 6/7
281.9 is the answer, but rounded it would be about 282
hope this helps, im not 100% sure
The answer is 12/7 or 1 5/7
4x=3/7
x=3/7 times 4
x=12/7 = 1 5/7