Frankie buys some stamps. she spends £15.30 on 20p and 50p stamps. she buys twice as many 20 p stamps as 50p stamps how many 20p stamps did she buy

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?