Answer:
48
Step-by-step explanation:
You just have to divide the length of the fabric by the length of the sections
$417.50 should be the correct answer you just multiply the $7.25 to 30 and then add the $200.
Answer:

Step-by-step explanation:
so you want to start by using y=mx+b
step one: find the slope (remember m is the slope in this)
m= 
m= 
m= 
m= - 
step two: insert the value we found for m into the equation and take one of the given points and insert the x and y into the equation (im using (0,5)) and solve for b.
y=mx+b
5= -4/3(0)+b
5=b
step three: rewrite y=mx+b with the values we found for m and for b

Step-by-step explanation:
I'm not sure what you mean by 'written method' but the sum is 2,654.