Tell me a please is a time limit on this

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.

Which inequality has a dashed boundary line when graphed ?