Part A Select the correct choices to complete the sentence.
Jarvis bought 2 beach towels and 3 pairs of swim trunks at a retail store. Each beach towel costs $3 less than a pair of swim trunks. He spent a total of $79. Let s represent the cost of a pair of swim trunks.

Part B
Add the two expressions and set this sum equal to 79 to model the situation with an equation. Solve for s . What is the cost of one pair of swim trunks?

This is a good source to look at, I used it for my essay on Westward Expansion last year.

"Westward Expansion and Bleeding Kansas." The Civil War, Primary Source Media, 1999. American Journey. U.S. History in Context, libraries.state.ma.us/login?gwurl=http://link.galegroup.com/apps/doc/EJ2151000178/UHIC?u=mlin_c_algonhs&xid=5fc824b2. Accessed 8 Apr. 2017.

Important Points To Discuss In Intro:

 The Westward Expansion began in 1803 when Thomas Jefferson figured that expanding the country's territories would be absolutely crucial in order to allow the country to prosper. 

The westward expansion ended up making slavery an issue that created a ton of racial tension.

The Louisiana Purchase started at the Mississippi River and reached the Rocky Mountains. 

^^ It doubled the size of the U.S

Describe manifest destiny - the idea that America was supposed to reach from one coast to another

Also, if you can, describe Eli Whitney's cotton gin invention. 

⇒ Connect all of these points to the thesis statement written below.

Possible Thesis Statement: The United States decided to expand due to the Louisiana Purchase, the belief of "manifest destiny" and the need to ship new innovations and products across the country with ease.