Solve these clues to fill the grid.
- Tool for weighing things; also a set of musical notes
- 7 Across
- The quotient obtained when the magnitude of a part is divided by the magnitude of the whole
- 8 Across
- The inedible nutlike seed of the horse chestnut (plural)
- 9 Across
- One of a pair of numbers whose product is 1: the ___ of 2/3 is 3/2
- 10 Across
- Anything that contributes causally to a result
- 11 Across
- Serving to ___ or allot or disperse
- 13 Across
- Something ___ in sequence or character or effect
- 14 Across
- A four-sided polygon
- 16 Across
- A parallelogram with four equal sides
- 1 Down
- A person who pleads for a cause or propounds an idea
- 2 Down
- The boundary line encompassing an area or object
- 3 Down
- A proportion in relation to a whole
- 4 Down
- Strength or the ability to control things
- 5 Down
- The number of inhabitants in a given place
- 6 Down
- The distinct personality of an individual regarded as a persisting entity
- 12 Down
- The relation between things with respect to their comparative quantity, magnitude, or degree
- 15 Down