When rates are expressed as a quantity of 1 such as 2 feet per second or 5 miles per hour, that is the definition of unit rates.
(Hope this Helps:)
Answer:
20 square units
Step-by-step explanation:
You count how many across the parallelogram is (which is 4) and you count how high it is (which is 5). Then you multiply 5×4* which equals 20 square units.
*The reason you do this is because base×hieght=area
prantheseis exponets multipication division addition and subtraction and gems is groups exponents multipication and subtraction hope this helps
I got C for 6 & 7. I haven't done this in a while so I don't know 8 & 9. I hope I helped!