Nathan works the same number of hours each day five days each week he earns $12 per hour last week he earn $420 how many hours did he work each day last week

There are a total sales of 2,000 dollars on monday on tuesday sales dropped 10% on wednesday sales dropped another 20% compared with tuesday from wednesday to thursday sales increases by an equal amount to 25% of monday total sales what is the net change in dollars on total sales from monday to tuesday