<h2>
Answer:</h2>

<h2>
Step-by-step explanation:</h2>
A rectangle is a quadrilateral whose angles are all right angles. In this problem, we have a rectangle whose height
and whose area is
. We don't know the other side of the rectangle, but let's call it
. So the area of a rectangle is:

The perimeter is the distance around a shape in two dimensions. For our rectangle, our perimeter is:

So our goal is to find
. From the equation of the area:

If we substitute both this value and the height in the equation of the perimeter we get:

11.2 * .05 = .56
sales tax = .56
11.2+.56 = 11.76
groceries plus tax = 11.76
Answer:
(-7,4]
Step-by-step explanation:
I'm going to assume that you need this in interval form
The domain is just asking for all the possible x values
The x value that's furthest to the left is -7 and because it's an open circle we write ( instead of [
the furthest to the right the line goes is 4 and because the circle is closed it's written with ]
but it all together and get
(-7,4]