Sandra is making a sign for her chess club. Two possible designs for the base of the 3x +7
x + 3
2x - 2
sign are shown.
Is there a value of x for which the
perimeters of the figures are equal?
Show all work! Explain your reasoning.

You are measuring the dimensions of the floor in your bedroom because you are planning to buy new carpet. which unit of measure is the most appropriate to use in this situation?

Standard deviation of 19,29,21,22,23

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.