Ahome health aide trades in an old car with a gas mileage rate of 18 1/4 miles per gallon. starting with a full tank of gas in her car, she travels 390 7/8 miles. it takes 14 3/4 gallons to fill the tank.
a. what is the gas mileage rate on the new car? (use mpg for unit)
b. how many miles further can she travel on a full tank of gas with the new car if the gas tank holds 20 gallons of gas?

Given: ab ≅ cd and ad ≅ bc prove: abcd is a parallelogram. statements reasons 1. ab ≅ cd; ad ≅ bc 1. given 2. ac ≅ ac 2. reflexive property 3. △adc ≅ △cba 3. ? 4. ∠dac ≅ ∠bca; ∠acd ≅ ∠cab 4. cpctc 5. ∠dac and ∠bca are alt. int. ∠s; ∠acd and ∠cab are alt. int. ∠s 5. definition of alternate interior angles 6. ab ∥ cd; ad ∥ bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3? triangle angle sum theorem sas congruency theorem sss congruency theorem cpctc