Afootball team gains 18 yards in one play and then loses 12 yards in the next. what is the teams total yardage?

Just tell me how to set up the equation.

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.