Is this a independent problem or a dependent problem

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion