Need asap !

what is the value of this expression?

40÷[24−4×(2+3)]

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This is about circle theorems. someone asap : (

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)

Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.