when 122 is decreased by five times a number, the result is equal to the number increased by 20. what is the number? 17 23.7 25.5 35

Which statements are true for invasive species? 1. they always stabilize an ecosystem. 2. they’re always successful in adjusting to a new habitat. 3. they often compete with the native species for resources. 4. they have the ability to displace the native species. 5. they’re always pests.