Question 11: Please help, Which statement(s) should be used in proving that vertical angles 1 and 3 are congruent?

B.  m < 1 + m < 2 = 180;  m < 2 + m < 3 = 180.

Step-by-step explanation:

m < 1 + m < 2 = 180  so  m < 1 = 180 - m < 2

m < 2 + m < 3 = 180  so   m < 3 = 180 - m^2.

So by the transitive property of equality  m < 1 = m < 3.

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

x> 6

step-by-step explanation:

8x+8> 7x+14

8x-7x> 14-8

x> 6