Shari gets an allowance of $20 per week. she has decided she needs more money, so she has made a deal
with her mother in hopes of increasing her weekly allowance. she proposes that she will throw a dart at
the dart board. if she hits the board, she gets the original $20 plus another shot at the dartboard for
an additional $20. if she misses the first throw, she only gets $10 for the week. shari hits the dart
board 50% of the time.
7. shari's mom is worried about how often she will be giving her daughter $40 a week. given shari's
stats, how many weeks will her mom be out $40?
a) 26 weeks
b) 13 weeks
c) 50 weeks
d) 2 weeks