Differentiation is part of calculus
differentiation basically allows you to find the gradient of tangent
We will use the formula of discount % to find the selling price...!
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<em>Complete solution in attachment!</em>
The perimeter of a shape is the sum of its side lengths
The expressions for the perimeter of the frame are 4(l + 2) and 4l + 8
<h3>How to determine the perimeter of the shape</h3>
The side length of the frame is given as l
So, the perimeter of the frame is
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When 2 inches are added to each length, the perimeter of the frame becomes

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Hence, the expressions for the perimeter of the frame are 4(l + 2) and 4l + 8
Read more about perimeter at:
brainly.com/question/24571594
Answer:
7/4
Step-by-step explanation:
To find the reciprocal of 4/7, flip the fraction.
The numerator goes in the denominator and the denominator goes in the numerator
7/4
Your question does not make sense unless you can estimate but the answer would be 20.625
Work:
You have to multiply 5.50 to 3.75 because 45 is 75 percent of 60