How do you add a decimal

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

What is the slope of the line that contains the points (-2,1) and (0,-3)

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?