Answer:

Step-by-step explanation:
we are given a function

we would like to simplify it for h(-1)
in order to do so
substitute the value of x

by order of PEMDAS
simplify square:

simplify multiplication:

simplify addition:

simplify subtraction:

reduce fraction:

186cm
You add all the sides up, so 42+42+51+51 which equals 186cm
Percent (%) = per 100
7 1/5 = 36/5 = 720/100 = 720%
Answer:

Step-by-step explanation:

Hope this helps!