80*/*per hour

Usually replies in 17 minutes

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

40*/*per hour

Geometry
| 10+ other subjects

90*/*per hour

Usually replies in 18 hours

Algebra 1, Algebra 2, Calculus
| 4 other subjects

50*/*per hour

Usually replies in 3 hours

Algebra 1, Algebra 2, Calculus
| 3 other subjects