Nira has $13.50. she receives a paycheck for $55. she spends $29.40. how much money does she have now ?

You add $13.50 to $55. 13.50+50=$63.50

And then she spends $29.40 which means you subtract. 63.50-29.40=34.10

So the answer is Nira has $34.10 left.

4x and 6y

im not sure though

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.