What's the Full form of NASA.​

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.

Jerrold has to buy 12 copies of a textbook which costs $36.25 per copy. how much must he spend for them?

Compared with the cost of tuition, fees, and books for a traditional college course, the cost of a clep exam is: