The cost of making a phone is $152. A store sells the phone for $281.20 select all the the expressions that could be used to find the percentage of markup for the ohone

Step-by-step explanation:

The above two expressions can be used to find the percentage of mark-up for the phone.

The first expression for instance will give;

= 85%

The second expression will give;

= 85%

Both of them will show that an 85% mark-up has been added to the cost of the phone.