Which is the best estimate for the percent equivalent of startfraction 7 over 15 endfraction?.

Ppcc assigned a story board on eg. ppcc. edu about a post-apocalyptic world called the books of wisdom. i was wondering if anyone had any advice on how to do well. also is there a way to change you name?

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?

Panthers and leopards prey on deer in an ecosystem. for unknown reasons, the population of leopards increased drastically. what are the likely effects of this change on the species? 1. more food for panthers and more competition for leopards 2. less food and more competition for panthers 3. fewer deer and more competition for panthers 4. more food for deer and less competition for panthers and leopards 5. more food for leopards and less competition for panthers