Pls 1. if [x-1/x]=5, then the value of [x2+1/x2] is [here~x2=xsquare
(a)25 (b)27 (c)29 (d)none of these

2.if{x-1/x}=5, then the value of {x4+1/x4} is
(a)725 (b)727 (c)729 (d)none of these

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project