Answer:
The difference would be $7.20
Step-by-step explanation:
Multiply $2.40 times 3
<em>y = 4x - 57 </em>
( , )
m =
y - = m ( x - )
~~~~~~~~~~~~~~~
( 15 , 3 )
( 19 , 19 )
m = = 4
y - 3 = 4 ( x - 15 )
<em>y = 4x - 57</em>