How much voltage is required to run 1.6 a of current through a 240 0 resistor?

Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0