Rhombus with side 5 cm and altitude 4.8 cm, and one of its diagonals is 8cm long, the length of the other diagonal is
A) 6 cm B) 10 cm C) 9.8 cm D) 12 cm

Question and answers are in the attached picture. you so much in advance.

Taking algebra two apex courses and need with these questions

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.