Answer:
A.A(n) expression is a mathematical relationship that uses one or more variables, numbers or operation symbols.
B.A(n) variable is a symbol that can be replaced by a number in a mathematical expression or equation.
C.A(n) equation is a mathematical sentence with an equal sign.
The surface area of the pyramid is 18,541 mm² . Option C
<h3>How to determine the surface area</h3>
The formula for surface area of a regular hexagonal prism is expressed as;

Where;
- a is the edge length = 44 millimeters
- h is the height = 95 millimeters
A = 2. 598 ( 44)² + 3(44) 
Simplify
A = 5029. 728 + 132 
Find the square root
A = 5029. 728 + 132(102. 357)
expand the bracket
A = 5029. 728 + 13511. 124
A = 18, 540. 85
A = 18,541 mm² in thee nearest square millimeter
Thus, the surface area of the pyramid is 18,541 mm² . Option C
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Tan240=1.732050808
Tan^-1(240)=89.76126897
Answer:
X =50 Y is also 50 since they are vertical angles
Step-by-step explanation:
70+ 60 + X = 180 (the 3 angles form a straigh line = 180 )
130 +X =180
X = 180-130
X=50