M
if you can help thank you

Plz hurry evaluate the expression a+b where a=8 and b=19

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two

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.