Respuesta :

Chelboy

Answer:390

Step-by-step explanation:

130% of a=507

130/100 x a=507

13/10 x a=507

13a/10=507

Cross multiplying we get

13a=507x10

13a=5070

Divide both sides by 13

13a ➗ 13=5070 ➗ 13

a=390