Answer:
Khan Academy.
Step-by-step explanation:
You can go on khan academy and search up "percentages and numbers." The videos should immediately pop up. there are also lessons if you don't want to risk getting your problem wrong. If you are still confused and do not understand please just comment and I will respond.
Answer:
One
Step-by-step explanation:
A, B, R and C lie on the same plane, while the others do not
Answer:
a pic of ur math?
Step-by-step explanation: