A. m∠bec + m∠ced = m∠bed; definition of a linear pair
b. m∠abc + m∠bec = m∠bed; angle addition postulate
c. m∠abc + m∠bec = m∠bed; definition of a linear pair
d. m∠bec + m∠ced = m∠bed; angle addition postulate

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expressions 4s +9s represents the total number of items that will be displayed on s shelves. simplify this expression

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?