Explain why the railroads were not built in a straight line from east to west.

There is a lot of reason why railroads from east to west were not built straight. Mountains are the number 1 reason why. Since there are a lot of mountains in between east and west, it would be hard for them to create a straighter railroad. Lakes, rivers and any other circumstances also affected this construction. This railroad also served as the link from each places for their trading. That’s why it was not built straight since it needs to connect from different places for their trading reason.

d

step-by-step explanation:

an inequality is an expression which means more than one number is a solution. we graph the solutions on a number line to show all possible values. we graph using circles and arrows.

equal to and less/greater than are graphed with filled in circles on the value.only less/greater than (not equal to) are graphed with open (not filled in) circles on the value.we draw an arrow the direction the solutions satisfy the inequality. generally this is the direction the inequality itself points.

this is a filled in circle on -2 so this is . this means only answers c and d are options.

answer d points to the right.