3(2x-y)
because if you multiply on both sides it equals 6x-3x
Answer:
shapes
Step-by-step explanation:
because the parallelogram is a shape and so is the other are shapes
circumference of the mirror = 175.84 cm
area of the mirror = 2461.76 cm²
The measure needed to find the amount of wire round the mirror is the circumference.
The measure needed to find the amount of glass needed is the area.
<h3>How to find area and circumference of a circle?</h3>
The circumference and area of a circle can be found as follows:
circumference of the mirror = 2πr
circumference of the mirror = 2 × 3.14 × 28 = 175.84 cm
area of the mirror = πr²
area of the mirror = 3.14 × 28²
area of the mirror = 2461.76 cm²
The measure needed to find the amount of wire round the mirror is the circumference.
The measure needed to find the amount of glass needed is the area.
learn more on circle here: brainly.com/question/16125353
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Ans given below
-3r-12=-21
-3r=-21+12
-3r=-9
r=-9\-3
r=3
A. 2t-7
Hope this helps! :)
