PLEASE HELP
what is the geometric mean of 4/5 and 2

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.

Math each whole number with a rational,exponential expression

Which best explains why this triangle is or is not a right triangle ?