When you reflect a point across the y-axis, the y coordinate remains the same, but the x-coordinates is transformed into its oppisite
30 + 8d = 102
8d = 102 - 30
8d = 72
d = 72/8
d = 9....you would have to walk 9 dogs
Answer: (a-2b)3=3a-6b
=3x-2-6x-1/2
= -6+3
= -3
Step-by-step explanation: