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To complete a particular task Deve ch...

To complete a particular task Deve charged $50 for the first 3 hours and thereafter $10 per hour. If 'A' represents the amount that Dave received after working for 'H' hours , which of the following expresses the amount he ears after working for 'H' hours , where `H gt 3` ?

A

A = 10 H

B

A = 10 H + 10

C

A = 10 H + 20

D

A = 10 H + 50

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