Ann wants to join a yoga studio. The studio charges $45 to join and then $5 per class. How many classes can she afford if she has $225 saved up?

Money with Ann = $225

Money she will need to spend on joining fees = $45

Money that will be left with her =

= 225 - 45

= $180

Cost of attending a class = $5

Number of classes Ann can attend with $180 =

= 180 ÷ 5

= 36 classes

∴ Ann can attend 36 classes if she has $225 saved up .