30*/*per hour

Usually replies in 24 minutes

Algebra 1, Algebra 2, Calculus
| 4 other subjects

60*/*per hour

Usually replies in 8 hours

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

45*/*per hour

Usually replies in 12 hours

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