A man is climbing down from 100 feet high descending 30 feet per minute. What equation is right?

1. y=100+30x

2. y=100x+30

3. y=100x-30

4. y=100-30x

A man is climbing down from 100 feet high descending 30 feet per minute. What equation is right?

1. y=100+30x

2. y=100x+30

3. y=100x-30

4. y=100-30x

Answer:Step-by-step explanation: