write the following statement in if - then form.

david will sing provided eric plays the piano.

The if-then statement is the following conditional statement "if X , then Y ," It is used to present situations and their possible outcomes. X is the cause and Y is the conclusion.

In our case the conditional "if-then" statement would be:

If Eric plays the piano then David will sing.

the first phase of the government’s plan for settlement was building the transcontinental railroad. the railroad provided a way to bring settlers and manufactured goods west and ship their agricultural and mining produce east. the transcontinental railroad was an essential artery for rapid development of the frontier.

the second phase of the government’s plan was a liberal land distribution policy that made it possible for many people to homestead. with these two key elements—transportation and cheap land—the government rapidly achieved its goal of persuading people to move west, settle on farms, and push back the frontier.