Answer:
A value
Step-by-step explanation:
I did the test.
Whenever you input a number <em>x</em> into function f(x), you should get an output of <em>y</em>. That means that the function should return a number value.
20c+14
To find the perimeter we have to add up all the sides
4c+6c+7+4c+6c+7
Combine light terms
D
