Whic decimal is equivalent to 5.05? 50.05 or 5.5 or 5.050 or 50.5

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Determine the required value of the missing probability to make the distribution a discrete probability distribution. x p(x) 3 0.23 4 ? 5 0.51 6 0.08 p(4) = nothing  (type an integer or a decimal.)

How do you find the distance of each number from the mean