Danny wants to promote his new business. He gave out a free pen to every fourth customer and a free pad of paper to every ninth customer. Which customer will be the first to receive both a pen and pad of paper?

Which two properties of equality could zoe use to finish solving for x? the equation is 3x - 4 = -10 for x so a either the addition or subtraction property of equalityb ether the multiplication or division property of equality c ether the addition or division property of equality d ether the subtraction or division property of equality just a simple a b c or d plz.