al encontrar N se obtuvo 80 de residuo y al obtener la raiz cuadrada de 4N se obtuvo 39 de resto. dar la suma de cifras de N

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.