Answer:
There are total number of pet fish and reptile pets are
.
Step-by-step explanation:
Number of pet fish are
and the number of pet reptiles are
.
It is required to find the total number of pet fish and reptile pets in the United States. It can be done by simply adding the above numbers such that total numbers are given by :

So, there are total number of pet fish and reptile pets are
.
Answer:
C
Step-by-step explanation:
yearly depreciation
32,400÷12
=2,700
Accumulated depreciation for 4 years
2,700×4
=10,800
Book value at year 4
32,400−10,800
=21,600
Answer:
The top of the ladder is now at 10 ft.
Step-by-step explanation:
At the start, we have a height H=6, a length L=10 and a base B, that has to be calculated by the Pythagorean theorem:

The base is moved twice the distance the height moves up.
We called this distance x, so we have:

The new height (H+x) is

The base travels 2x=8, so the new base B' is 0.
This means that the ladder is all against the wall (L=H').
Do you need to switch it around or do something else?