exam Maths Puzzle Numerical Ability

Could someone help me I am confused .
Simplify and evaluate (x^3 y^-4 z^0 / 5x^6 y^8)^3

Read Solution (Total 0)

exam Other Question

8(6-2)+8x7/8(4-1)


8(6-2)+8x7

that number is over 8(4-1) this is how it should be


8(6-2)+8x7
-----------
8(4-1)
[-14y+3]+3=2