(2*40%+x*10<span>0%)/(2+x) = 70%; calculate x !</span>
I might be wrong but I think it's 50 minutes.
$0.10 x 50min = $5
$20 + $5 = $25
$0.20 x 50min = $10
$15 + $10 = $25
So, it's 50 minutes.
Answer:
i think it would be A
Step-by-step explanation:
I think it might be f^-1 (x) = x/2 - 3/2
I hope this helps!
