Function g is defined as g(x)=1/4f(x) what is the graph of g

This is about circle theorems. someone asap : (

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.

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is