Respuesta :

12c+19t=e

C = cost per clarinet
T= cost per trumpet
E= total money earned

Answer:

12t + 19c

where t = selling price of trumpets and

c = selling price of clarinet

Explanation:

Let t be the selling price per unit for trumpets and c be the selling price per unit for clarinet.

Given that the music store sold 12 trumpets and 19 clarinets

Therefore,

Money earned from sale of trumpets = 12t

Money earned from sale of clarinets = 19c

Total amount earned last month = 12t + 19c