Last spring 12 birds ate 8 cups of birdseed in one month. If I am expecting 18 birds this month, how many cups of birdseed do I need?
Complete the double number line and ratio table to support your answer.
Simplified ratio of birds to cups: _

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.