Amir works in a sports shop he can have a discount of 40% on anything he buys for himself how much will he pay for a pair of trainers priced at £65

2

step-by-step explanation:

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circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72