Which pair of angles are congruent?

a)
1 and 8

b)
4 and 6

c)
5 and 6

d)
1 and 7

A.  1 and 8

Step-by-step explanation:

Angles 4 and 6 are supplementary; they add up to 180.

Angles 5 and 6 are also supplementary; they add up to 180.

Angles 1 and 7 are same said exterior; they also add up to 180.  

Angles 1 and 8 are the only ones that are the same.

tigers

step-by-step explanation:

cougars 12/10 (12-10 = 2)

bobcats 20/10 (20-10 =10)

bulldogs 8/5 (8-5 =3)

tigers 3/5 (3-5 =-2)

if x decreases by 4 then y increases by 10

step-by-step explanation: