<h2>
The volume of a cylinder (y) = 
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Step-by-step explanation:
Given by question,
The volume of a cylinder = y, The radius of a cylinder(r) = x - 3 and
The height of a cylinder(h) = 2x + 7
To find, the volume of a cylinder (y) = ?
We know that,
The volume of a cylinder = 
⇒ 
⇒ y = 
⇒ y = 
∴ The volume of a cylinder (y) = 
Thus, the volume of a cylinder (y) = 
You can also refer:
brainly.com/question/8913282
2×2=4
1×4=4
and I guess you can also flip 1×4 around and have 4×1 as your third one?
A because when you add 34 + 155 you get 189.5 then if you add 155 to that you get 345.