How to find the first number of an arithmetic sequence?

Arcus had 8/9 of a pack of construction paper. he used 1/5 of the paper to make paper airplanes. what fraction of the original pack did Arcus use to make paper airplanes?

A 2-quart carton of frozen yogurt costs $10:88. What is price per cup?

Find the exact value of tan (x+y) if csco = 5/3 and cosy=5/13

Working together, it takes two computers 15 minutes to send out a company's email. If it takes the slower computer 60 minutes to do the job on its own, how long will it take the faster computer to do the job on its own? Do not do any rounding.

Nick has to build a brick wall. Each row of the wall requires 6 squared bricks. There are ten rows in the wall. How many bricks will Nick require to build the wall?

The estimate to 145.4 : 21

What is 124.15+154=

What is 4.1528 rounded to the nearest thousandth?

The sum of four consecutive integers is 342. What is the third term in the sequence

bob bought bill an item that cost 193. bill gave him 200. bob then took 100 out of the 200 to buy bill an item for 93. how much does bill owe Bob totally?