"there is no such thing as a free lunch" is a famous economic expression that means everything has a cost. in 1 or 2 sentences, decribe how this expression relates to opportunity cost.

Which statements about the two fossil images are correct? 1. cave bears are ancestors of plateosaurus. 2. plateosaurus were present on earth before ostracoderms. 3. ostracoderms were the first to die. 4. plateosaurus died after the ostracoderms. 5. cave bears are the oldest fossils.

You can reduce glare in snowy weatuer by?

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