Tdma and cdma are methods of a. transmitting binary, digital, compressed data. b. allowing cell phone calls to switch between cells. c. sending cell phone locations to local towers. d. converting sound information into electricity.

c. barbarians with unexpected intelligence  

the boy's acceleration toward the girl is 2.08 m/s^2.

explanation:

according the newton's third law, the force causing the girl accelerate towards the boy will be me with equal counter-force causing the boy to accelerate towards the girl. these forces will be of equal magnitude and allows us to determine the boy's acceleration:

the boy's acceleration toward the girl is 2.08 m/s^2.