Matthew worked 40 hours every week for 8 weeks in a row, earning
a total of $2,880 over the 8-week
period. In this scenario, what is the
constant of proportionality?
A 5
B 9
C 72
D 320

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.