60*/*per hour

Usually replies in 9 hours

Statistics
| 10+ other subjects

75*/*per hour

Usually replies in 33 minutes

Algebra 1, Algebra 2, Calculus

125*/*per hour

Usually replies in 44 minutes

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

70*/*per hour

Usually replies in 6 hours

Algebra 1, Geometry, Prealgebra
| 10+ other subjects