Monica wants to purchase at least 20 minutes of computer time from a time-sharing computer company. She needs at least 7 minutes from
Computer A. The time-sharing company will rent Computer A only if the user agrees
also to rent Computer B for at least 5 minutes. The rent for Computer A is $500 per
minute and the rent for Computer B is $200 per minute. In order to minimize the
total cost, how much computer time should Monica buy on each machine?

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.