Answer:
C) 2+7i is the correct answer.
Step-by-step explanation:
simplify by combining the real and imaginary parts of each expression. in this question, the variable i represents an imaginary number.
B: A
He earns $90 in 3 weeks.
C
He shelves 90 books in 3 hours.
daisies
I got x=48/23 or 2 2/23