Please help!! about the effect of what Robert lee did.

Which native american tribe allied with the spanish?

Which of these innovations led to increased production in american factories in the early 1800s? a. the use of interchangeable parts b. the construction of canals c. the invention of the mechanical reaper d. the availability of electricity

Plz ! the election marked the last time the federalist party ran a candidate for president. a. 1812. b. 1820. c. 1816. d. 1824.