Luis rides his bicycle 34 mile in 15 minutes along the bike trail.
assuming he rides at a constant rate, what is his speed, in miles per hour?

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