Answer:
48
Step-by-step explanation:
[tex] {x}^{4} + 0.5 {y}^{3} \\ [/tex]
[tex] {2}^{4} + 0.5 \times {4}^{3} [/tex]
[tex]16 + 0.5 \times 64[/tex]
[tex]16 + 32[/tex]
[tex]48[/tex]
