A jar contains nine black buttons and seven brown if nine button are picked at random what is the probability that exactly five of them are black is it perm or comb

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

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.