Question

{[(30−60)÷(−30)]2−15}÷(−7)


the -30 is squared

Answer 1

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

Answer 2

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