70*/*per hour

SAT Math
| 10+ other subjects

45*/*per hour

Probability
| 10+ other subjects

50*/*per hour

Usually replies in 14 minutes

Algebra 2, Geometry, Prealgebra
| 10+ other subjects

50*/*per hour

Usually replies in 8 hours

Algebra 1, Algebra 2, Geometry
| 10+ other subjects