After four weeks his balance was to 270 at the end of 13 weeks his balance was $405 how long will it take to reach$540

It will take 22 weeks
To reach 540 from zero

Iam sad after this q.

A. p = 2(l + w)p/2 - l = ww = p/2 - l b. while isolating the variable w in the equation, i first divided both sides by 2 and then i subtracted l from both sides. i hope this .