W x 2 + 30 = Length because you just follow exactly what it says, in this case W would be your variable
Answer:
b
Step-by-step explanation:
there's a property for Alternate Interior Angles
4 x 7 = 28
49 x 13 = 637
28/637
=4/91
90 minutes because 20 + 20 + 20 + 20 + 10 = 90