Answer:
2
Explanation:
To simplify the expression we use PEMDAS.
[tex]\frac{1}{2}(4\cdot5)-2^3[/tex]first we evaluate he parenthesis to get
[tex]\frac{1}{2}\cdot20-2^3[/tex]then the exponents
[tex]\frac{1}{2}\cdot20-8[/tex]then multiplication
[tex]10-8[/tex]and finally, the subtraction
[tex]10-8=2[/tex]Hence,
[tex]\frac{1}{2}(4\cdot5)-2^3=2[/tex]which is our answer!
