7. The ratio of boys to girls in the grade is 4:5. If there are 20 more girls in the grade, how many boys are there? please I need the answer

Find four consecutive odd numbers which add to 64. give the numbers smallest to largest

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.

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b