What type of number is
-4 pi

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

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.

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex