Ahigh school play costs an up front $30,000 to produce, plus an additional cost
of $1000 for each performance. every sold out performance of the play brings in
$2500 of revenue to the school. how many sold out performances are needed so
that the school breaks even on the production of the play?

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota

Type the correct answer in each box. use numerals instead of words. the average number of subscribers to an online magazine each year from 2010 to 2015 is given in the table below. the average number of subscribers to the online magazine in 2010 was the percent increase in the average number of subscribers in 2011 to the average number of subscribers in 2012 was %. the maximum average number of subscribers to the online magazine in the years shown was