A shop keeper buys some books for Gh $80.00 If he had bought four more books for the same amount, each would have cost Ghe1.00 less. Find the total number of books he bought.​

When only separate discreet points are graphed it is called?

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)