Answer:

Step-by-step explanation:
It's an arithmetic sequence.

The difference is constant.
The explicit formula of an arithmetic sequence:

Substitute:

<em>use distributive property</em>

Answer: 3.75 ft
Step-by-step explanation:
Here we are given the measure of the length of a window. Generally the length is given in the International System of units format (meters); however, in this case we are given the length in feet and inches:

Now, before converting this whole measure to feet, we have to know that
, then we can perform the conversion:

This means 
Hence:
This is the measure of the length of the window in feet.
Hell. fire blazing. pure hell<3