Answer:
always start at the origin and X go before Y
Start at x then go to y
My teacher always said babys crawl before they walk so always crawl (x) then walk (y)
B 8.56
this is the answer because you simply add what he bought so 1.13+1.13+1.76 which is 4.02 then subtract what he started with which was 12.58 so 12.58-4.02 is 8.56 so that's your answer
Radius= 12÷2 => 6 cm
diameter= 12 cm
circumference = 2πr
=> 2× 22/7 × radius
=> 37.7 cm
Hope it helps ^^