How many justices are serving in our Supreme Court?

9 Justices are serving in our Supreme Court.

Explanation:

9 Justices make up the current Supreme Court: one Chief Justice and eight Associate Justices. The Honorable John G. Roberts, Jr., is the 17th Chief Justice of the United States, and there have been 103 Associate Justices in the Court's history.

Why are there 9 Supreme Court Justices?

Lincoln added a 10th justice in 1863 to help ensure his anti-slavery measures had support in the courts, History.com added. Congress cut the number back to seven after Lincoln's death after squabbles with President Andrew Johnson and eventually settled on nine again in 1869 under President Ulysses S. Grant.

My answers were found searching the web. Here are the sites I found the information above from:

https://www.supremecourt.gov/about/justices.aspx#:~:text=Nine%20Justices%20make%20up%20the,Justices%20in%20the%20Court's%20history.

https://www.ksl.com/article/50156678/why-exactly-does-the-us-supreme-court-have-9-justices

Currently nine justices.

the new jersey plan most resembles the articles of confederation.

pennsylvania, new hampshire, massachusetts, connecticut and rhode island .