I got the answer 18.79
I believe this is correct, Please tell me if im wrong. :)
The standard deviation is the square root of the variance...so that means the variance is the standard deviation squared.
2.3^2 = 5.29 <===
48/2=24
24×.045=1.08
24+1.08=$25.08 to purchase the game
The solution possible can be correct by dividing both sides by -5 ;Sooo x>-5.....