A department store is having a storewide 20% discount sale. The sale price Of an item that has a regular price of Ris S= R - 0.2R. Write the inverse function. What is the regular price for an item that is on sale for $38.40?

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.