Answer:
If you wanted to buy 7 books you would need $23.87.
Step-by-step explanation:
Divide the total of the six books by their price, ($20.46/6), you would get that the individual price of each book is $3.41. Lastly, you multiply that number by 7 because that's how many books you need (7 x $3.41). You end up with $23.87
The missing justification is for the statement that three angles add to a particular angle. The appropriate choice is ...
... c. Angle Addition Postulate
120 is the answer to your question
F(x) = g(x) for x = 1 and x = 3. Verify that for yourself.
