statistics
perimeter or circumference The only answer is perimeter. The circumference is the the perimeter of a circle; the distance around a circle.
numeral
The quotient. In the problem 7 / 2 = 3 (+1) The 7 is the "dividend"; the 2 is the "divisor": the 3 is the "quotient" and the 1 is the "remainder".
The main part of a word without any affixes?
A graph of some kind, which could be a line graph, a bar chart, a pie chat, a pictogram, etc.
Income
An equilateral parallelogram is a rhombus.
A rectangle or a square.
sphere
The range is the difference between the greatest and least numbers.
stock
If you quote a concentration 'x' as so many parts per hundred, then that number does represent hundredths. It's just a fraction, x/100
ranking
correct answer is numerical order
A segment with end points on a circle is a chord.
Two lines cross or intersect at a point.
One hundredth of a gram is 10 milligrams.
There is no such unit.
deci
Default
What is one thousandth