A coin contains 9 grams of nickel and 161616 grams of copper, for a total weight of 25 grams. What percentage of the metal in the coin is copper?

Which statements are true? see picture

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

Which equation represents the function on the graph?