A bag contains five Gold marbles, seven silver marbles and 23 black marbles. The rules of the game are as follows: you randomly select one marble from the bag. If it is gold you win six dollars, if it is silver you win two dollars. It costs one dollar to play. What is your expected profit or loss if you play the game?

b

step-by-step explanation:

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation:

okay..i will pick 8!