Find the unknown length. Round to the nearest tenth if necessary.

Find the third, fifth and seventh term sequence described by each rule a(n)=n+1

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Can anyone me get through my algebra 2 class? the only class i need to graduate..