From 5 a. m. to noon, the temperature rose 15 °F to a high of 10 °F. What was the temperature at 5 a. m.?
A. -15 °F
B. --5 °F
C. 5 °F
D. 25 °F

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.

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

Can some one me with these questions