Which formula defines the sequence f(1) = 2, f(2) = 6, f(3) = 10, f(4) = 14, f(5) = 18?

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06