Only 6. Please and thanks

Answer:
Part a) [tex]7.536\ m[/tex]
Part b) [tex]\$34.14[/tex]
Step-by-step explanation:
Part 6)
a) How much edging is needed?
we know that
To find out how much edging is needed determine the circumference of the circular garden
The circumference of the circular garden is equal to
[tex]C=\pi D[/tex]
where
D is the diameter
we have
[tex]D=2.4\ m[/tex]
assume
[tex]\pi =3.14[/tex]
substitute
[tex]C=(3.14)(2.4)[/tex]
[tex]C=7.536\ m[/tex]
Part b) we know that
To find out the cost to edge the garden, multiply the length of edging plastic needed by the cost of $4.53 per meter
so
[tex](7.536\ m)(4.53\ \$/m)=\$34.14[/tex]