Which graph represents the equation y² = –4x?

Convert 2000 swiss francs to dutch guilders

Can someone me out here and the tell me the greatest common factor

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.