The expressions in which the numbers, or variables, or both, are connected by operational signs (+, - etc.) are called algebraic expressions. For example 5, 4x, a+b, x−y.
Answer:

Step-by-step explanation:
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From the attachment:


Dilation:

Required
Determine R'
First, subtract the coordinates of P from R. This means that R is measured from P.



Next, apply dilation factor 0.5




Lastly, measure R' from the origin by adding the coordinates of P to R'



Answer: 6 cm,22.9 cm, 20.1 cm
Step-by-step explanation: