Oh so when they say more resistance, the current must be
constant and voltage can change. Thanks for the help eagle and
patience with me. But in a home circuit, isn’t voltage fixed?
Thanks for the help!
Darkness hacker, I see u r something like me. I’ll pm u my
situation.
V = IR always apply.
Questions may want to keep 1 of the 3 variables constant for
students to solve it directly. That's about it. 
And yes, home circuits as well as batteries have fixed
voltages.
I could go deeper and deeper as I'm trained in electrical
engineering. But the questions you are asking now borders upon how
exam questions are set, and that is more an art than a science
:)