Using a common denominator to write an equivalent fraction for each fraction what would 1/3, 1/5, common denominator be?

What two criteria are needed for triangles to be similar

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 longer leg of a 30-60-90 trangle is 18