The mobility of individual mounted soldiers made it possible to send Mongol cavalry on successful scouting missions, gathering intelligence about routes and searching for terrain suited to the preferred combat tactics of the Mongols... To avoid the deadly hail of missiles, enemies would frequently spread out, or seek cover, breaking up their formations and making them more vulnerable to the lancers' charges. Likewise, when they packed themselves together into dense square or phalanx style formations, they would become more vulnerable to the arrows. Using the passage as a reference, how was Genghis Khan able to create the largest land empire in history?​

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?