18 divided by 60 = 0.3
0.3 x 100 = 30
18 is 30% of 60
Answer:

Step-by-step explanation:
Given
See attachment for graph
Required
The unit cost
Pick any point on the dots of the graph; we have:

The unit cost is then calculated as:


I think it is. Dont take my word for it tho
They are not equivalent because
4:5
x2 x2
=8:10
it does not equal 8:12
your welcome:)
Take a vertical line and place it on thegraph<span>. </span>If<span> the </span>graph is a function<span>, then no matter where on the </span>graph<span> you place the vertical line, the </span>graph<span>should only cross the vertical line once.</span>