A(n) blank is a pure substance that can't be broken down into simpler substance by chemical or physical means

The author characterizes van gogh as feeling somewhat inadequate from an early age because: he is named after his dead brother. he is verbally abused by his parents. he is extremely bad at numerous activities. he has learning difficulties.

If a business sells 50 units per week and has 150 units of inventory, then the business has

The energy applied to cause vibration can be in the form of air pressure a stick, bow, or electricity. true or fasle