A person named Rafiq’s annual income has increased for Tk. 3500 but there is no charge in the income tax payable for him since the rate of income tax has been reduced from 7% to 4%. Find his present income.

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