Mike had $ 300 $ 300 in his checking account. Then he wrote three checks for $ 29.25 $ 29.25 , $ 46.75 $ 46.75 , and $ 31.25 $ 31.25 and made one deposit for $ 861.2 $ 861.2 . What is the new balance of his checking account?

Select the correct answer. given: ∆abc with prove: statement reason 1. given 2. ∠cab ≅ ∠edb ∠acb ≅ ∠deb if two parallel lines are cut by a transversal, the corresponding angles are congruent. 3. ∆abc ~ ∆dbe aa criterion for similarity 4. corresponding sides of similar triangles are proportional. 5. ab = ad + db cb = ce + eb segment addition 6. substitution property of equality 7. division 8. subtraction property of equality what is the missing statement in the proof? scroll down to see the entire proof.