Since Lauren earns $255 for working 20 hours; we'll have to divide that to see what she gets per hour. We divide 255 by 20 (255/20) which would give us 12.75, so she get $12.75 per hour. Now that we've done that we can now start creating the formula. X will stand for how much money she earns in total (X=). We will now put 12.75h. Now we know that 12.75 is supposed to be multiplied by how many hours she works (h). After that we're done! I hope this helps ^^ Be sure to give me brainliest answer if it did help.