Do subtraction with monetory values.

$49.68 -$7.89=?

How can you decide witch operations to use to slice a two step equation

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

Which of the following is the graph of y= square root -x-3