Last year, Charlie sold 42 candy bars for a fundraiser. This year, he sold 85 candy bars. What was the percent of change? Round to the nearest tenths place. Show work pls to :)

An equation where variables are used to represent known values—function notation true or false

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?

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions