Suppose the 4th term of an arithmetic sequence is 27, and the 8th term is 59.
1. What are the first term and the common difference?
2. Write a function for the sequence.

The first term is 3 and common difference is 8.

And

The formula for sequence is:

Function is:

Step-by-step explanation:

Given that

The general formula for arithmetic sequence is:

Here

a is the first term

n is the term number

and d is the common difference

for 4th term

For 8th term

subtracting equation 1 from equation 2

Putting d = 8 in equation 1

Now for the function

The sequence can also be expressed as a function as:

Hence,

The first term is 3 and common difference is 8.

And

The formula for sequence is:

Function is:

water molecules will move from the side of higher water concentration to the side of lower concentration until both solutions are isotonic. at this point, equilibrium is reached. in an isotonic solution, the flow of water in and out of the cell is happening at the same rate.

hope this < 3

the answer is 62.8 cubic units