The second one is correct
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Correct Question :</h3>
Express in arithmetic :
Seven added to double a number.
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Solution :</h3>
Let the unknown be x.
Then, double of the number = 2x.
Atq,
2x+7
Hence,seven added to double a number = 2x+7
A regular quadrilateral prism has 12 edges. It is given perimeter of the base 32 cm. Length of each edge of base will be 32÷4=8 cm. The 4 edges at the top will also have the same number of edges that is 4 with measure 8cm each.
Given: The height of the prism is 2 times greater than the length of the base edge.Height of prism = 2(8)= 16cm. Number of edges with measure 16 cm is 4.
Sum of all the 12 edges= 8+8+8+8+16+16+16+16+8+8+8+8=128 cm.
L=2w+30
If I had one of the numbers I'd be able to help more