There are 8 weeks and 18 books. therefore you would multiply these numbers together.
the answer would be 144 different combinations.
not sure about the permutation or combination notation, but I got you on the first part!
Answer:
all real numbers
the domain of any parabola is all real numbers because it gets wider.
She regrouped the numbers instead of multiplying like 8b(2b-r) -4r(2b-r).
Answer:
2Ab=h
Step-by-step explanation:
A=1/2bh
2A=bh
2Ab=h