will each of the ff changes in price cause total revenue to increase,decrease,or unchanged?

Question

a.) price falls, demand is elastic
b).price rises, demand is elastic
c.)price falls, demand is unitary elastic
d.)price rises, demand is unitary elastic.
e.)price falls, demand is inelastic.
f.)price rises, demand is inelastic

Answer 1

a) demand increase
b) demand decrease
c) demand increase incrementally
d) demand decrease incrementally
e) demand stays the same
f) demand stays the same