A) 1 B) 2 C) 12 D) 50
C
The world population is approximately ________ people
A) 6.8 billion B) 6.8 trillion C) 680 million D) 2 trillion E) 6.8 million
Supply might ___________________because of a decrease in the cost of inputs.
Fill in the blank(s) with the appropriate word(s).
