Question

I need the answer for these.
1a:
1b:
1c:

Answer 1

`a.\\8:(1)/(2)\cdot3=8\cdot(2)/(1)\cdot3=8\cdot2\cdot3=16\cdot3=48\\\\b.\\3√(50-1)=3√(49)=3\cdot7=21\\\\c.\\((5+2)(-8))/((-2)^3-3)=(7(-8))/(-8-3)=(-56)/(-11)=(56)/(11)=5(1)/(11)`