book Maths Puzzle Numerical Ability

please help me.

solve for the indicated variable.
1. distance
solve for t: d=rt

i tryed: d/r=rt/r , t=d/r

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book Other Question
graph the linear equality 4x+y<_-1 i have a home work today. and i want a pg no 108-109 in algebra 2 book. plz send me that pages. plz.