Answer: h=7
Step-by-step explanation:
By definition the function in vertex form is:

Where (h,k) is the vertex of the parabola.
You must group the terms that contain the same variable in the function:

Complete the square as following:

Now you must rewrite it as following:

Then:
h=7
2/5 in a decimal form= 0.4
2/5 in a percentage form= 40%
Hope this Helps!
Answer:
5 feet
Step-by-step explanation:
i know it is, i'm a straight A student in math :D
i just don't know how to explain-
Step-by-step explanation:
The area is

Since the width is

Then, the length will be

Each small doll cost 6.5 dollars and each large doll cost 10 dollars