9x^2=1 please show all work

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Someone answer asap for ! 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