Working alone, elisa can sweep a porch in 11 minutes. pranav can sweep the same porch in 13 minutes. how long would it take if they worked together.
a. 5.96 minutes
b. 5.86 minutes
c. 5.21 minutes
d. 4.87 minutes

Elisa, e = 11mins

Prenav,p = 13mins

time to complete, t

1 = t( 1/11 + 1/13) = t (24/143)

t = 143/24 = 5.96min

Answer is A 5.96mins

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

translate k to n and reflect across the line containing jk.