The expression p(3-0.5x) is equivalent to the expression -24=qx. in these expressions, p and q are rational numbers. what is the value of q?

You can simplify the second equation to 
and expand the first equation to 

and then you substitute x to give you 
But without the other side of the first equation you can't go any further. Hope that helped.

The first one is 2/3the second is 1/160the third is 4/125

128/3reason being 5 and 1/3 = 16/316/3 • 2/3 = 32/31 and 1/3 = 4/3 32/3 • 4/3 this will equal 128/3