The Coefficient or constant takes the sign directly to the right or left of it?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

If w = 6 units, x = 3 units, and y = 5 units, what is the surface area of the figure? 168 units2 240 units2 144 units2 96 units2