Answer:
14
Step-by-step explanation:
[tex](15 - 7) \sqrt{ \dfrac{64}{256} } \: + 2 \sqrt{25} [/tex]
[tex] = 8 \times \dfrac{8}{16} + 2 \times 5[/tex]
[tex] = 4 + 10[/tex]
[tex] = 14[/tex]
