Respuesta :

Answer:

Step-by-step explanation:

1 is y = 15x, in 9 years he will have saved $13,500

2 is x2 − 4x − 211 is y = 15x, in 9 years he will have saved $13,500

2 is x2 − 4x − 21

1 is y = 15x in 9 years he will have saved $13,500