What is a letter or symbol that represents some unknown value

The common ratio in a geometric series is 444 and the first term is 333. Find the sum of the first 888 terms in the series.

There are 26 baseball teams in the league. Each team has 18 players. Write a number sentence that will provide a reasonable estimate for the number of players in the league. Explain how you found your estimate

Identify the exponential function for this graph. (Be sure to look at the scales on the x - and y-axes.)

The Gilberts are designing a rectangular patio. The patio has an area of 432 square feet. The width of the patio is its length. What is the length of the patio

Parminder is working at an isolated weather station in the Yukon. She earns an annual salary of $45 650.00 plus $780.00/month for isolation pay. If she works at the station for 8 months of the year, what will her annual income be?

Which is the following numbers will produce an irrational number when added to 1/3

Solve the equation below for x and check your solution. 4x+3=x

What is the simplest form of 8/2. Show your work

Stephanie rides her bike 2 miles to the post office and then another 50 yards to the train station. How many yards long was her trip?

Guys how to IIdentify a rational and not rational expressions and why?