yasmeen has a collection of toys cars. there are 15 cars in the collection and 1/3 of them are convertibles. yasmeen decided to double the amount of convertibles in the collection. how many convertibles are in the collection now? what fraction of the cars are convertibles now?

Each weekday davina rides her bike from her house to school. after school, she rides to the library. then davina takes the same route to get home. these locations are shown on the grid below, where 1 unit on the grid represents 1 kilometer. how many kilometers does she ride each day? 10 16 20 32