60hr

60*/*per hour

Discrete Math
| 10+ other subjects

40hr

40*/*per hour

Usually replies in 2 hours

Discrete Math
| 10+ other subjects

50hr

50*/*per hour

Usually replies in 6 hours

Discrete Math
| 10+ other subjects

180hr

180*/*per hour

Usually replies in 39 minutes

Discrete Math
| 10+ other subjects