Write a equation. if a perimeter of a room is 78 feet what is the area of the floor of the room

Solve for x by completing the square. 2x^2-4x+7=0

Add the fractions and simplify 1/2+ 1/3

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.