43 snacks costs $53.75 how much does 1 cost?

Find the measurement of angle b in the following triangle

In the figure, triangle aob and triangle boc form a linear pair ,find the measure of x

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.