How i would solve it is 1. 72.6-35=37.6 2. 37.6/.05=752 and for April you can do the same process phone bill - 35 for usage then divide the answer by .05
As we know that x=x0*[1/2]n putting the values 375=3000*[1/2]n 375/3000=<span>[1/2]n </span>1/8=<span>[1/2]n simplify [1/2]3=</span><span>[1/2]n by cancelling them so n=3 so it will take 3 minutes hope it helps</span>
