How do you find the perimeter of a square?

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x