Posted by **Erin W!!!!!!** on Sunday, November 11, 2007 at 8:23pm.

A bricklayer's assistant starts building a wall, laying 50 bricks per hour. Two hours later the master comes and lays down 80 bricks per hour.

x= number of hours since the assistant has been laying.

Qusestion--------

Write expressions for the number of bricks the assistant has laid and the number of bricks tha the master has laid.

Please help me.

I understand this stuff, but this problem is just stumpiing me!!!

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