45*/*per hour

Usually replies in 10 hours

Calculus
| 10+ other subjects

45*/*per hour

Usually replies in 1 hour

Calculus, Linear Algebra
| 10+ other subjects

64*/*per hour

Usually replies in 3 hours

Calculus
| 9 other subjects

40*/*per hour

Usually replies in 13 hours

Calculus, Linear Algebra
| 10+ other subjects