The Relationship Between Two Variables
Patterning and Algebra, and more...

 1 EASY If $$a=2b$$, how many times as large as $$a$$ is $$b$$?

 2 EASY If $$q = 847$$ and $$q=r+4$$ what is the value of $$r$$?

 3 MEDIUM $$j = (k-2) \div 3$$ If $$k=89$$, what is the value of $$j$$?

 4 MEDIUM If $$y=4x$$, when is $$x$$ greater than $$y$$? AlwaysNeverOnly when $$x$$ is greater than 0Only when $$x$$ is less than 0None of the above

 5 HARD When $$m=7$$, $$t=26$$ and when $$m=12$$, $$t=41$$. What could the relation be between these two variables? $$t=m\times 4 - 2$$$$t=m\times 5 - 9$$$$t=m\times 2 + 12$$$$t=m\times 3 + 5$$None of the above