If the sum of a number and four is tripled , the result is two less than twice the number. find the number

How many $20 bills do you need to have to make $280

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect

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