Jack is driving from his house to the airport. at 9: 00 am, he is 150 miles from the airport. at 10: 30 am, he is 75 miles from the airport. what is jack’s average driving speed between 9: 00 am and 10: 30 am?
miles/hour

anyone? find the second, fifth, and ninth terms of a sequence where the first term is 65 and the common difference is -7. 72, 93, 121 72, 79, 86 58, 37, 9 58, 51, 44

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

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