Question

Q40
If * denotes 'x', A' denotes' = ','1'
denotes '-,'.' denotes '+', 'a' denotes '='
and 'B' denotes +, then which of the
following equations is correct?
2 0 10 * 4 A 5 a 5 • 12 A 6
27 A 9. 6 B 3 * 6 0 9
• B
04 A 2 * 0 a 7A1 * 0
05 • 6 A 3 0 2 a 8 A 4 * 3​

Answer 1

Step-by-step explanation:

Carbon is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table. Carbon makes up only about 0.025 percent of Earth's crust.