Which shows how to use similar right triangles to find the equation of the line through (0,6) and any point, (2,y), on the line?

Write a recursive sequence that represents the sequence defined by the following explicit formula:

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?