The tree in the backyard is 6 years old and 30ft it has grown. it has grown 3ft a year since it was planted. how tall was it when it was planted?

15 points ! ~ see if you know the answer to both you!

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40 points. given: two congruent angles ∠c and ∠r are supplementary. prove: ∠r and ∠c are both right angles. it doesn't have to be exactly 10 rows. statements reasons1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. 6. 7. 7. 8. 8. 9. 9. 10. 10.