Which greek mathematician wrote the most definitive text on geometry, one that is still referred to today?
a) thales
b) pythagoras
c) euclid
d) archimedes
e) hippocrates

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

Need so much on this one how many yards?

Which of the following circles have their centers on the x-axis? check all that apply.