Arnold went shopping at the Link with $80 to spend. He spent $12 on a belt and $20 for a shirt. How much can he spend on a pair of pants?
x

Question

Arnold went shopping at the Link with $80 to spend. He spent $12 on a belt and $20 for a shirt. How much can he spend on a pair of pants? 
    x < 68 
   x < 58 
   x < 48 
   x < 38 
 
is it the third choice?

anonymous · Answer

Yes!  You're right!

anonymous · Answer

Because x < (80 - 12) - 20     ->    x < 48

anonymous · Answer

yay! =D

anonymous · Answer

Notice that the grouping of parentheses is important because x < 80 - (12 - 20)     does NOT lead to   x < 48.  You could also leave the parentheses out and go in order on the subtraction.