Answer:
Cost of shelves = $148.50
Step-by-step explanation:
Measure of each shelf= [tex]275\ cm\ = \frac{275}{100} \ m\ =2.75 \ m[/tex]
Measure of 4 shelves together= [tex]4\times2.75\ m\ = 11 m[/tex]
Cost of lumber = $[tex]13.50[/tex] per meter
∴ Cost of the shelves = Measure in meters x Cost of lumber per meter
[tex]\\=11\times13.50[/tex]=$148.50
