15. you can spend at most $60 on beads. a bag containing red
beads costs $2 per bag. a bag containing blue beads costs $3
per bag. you need more bags of blue beads than bags of red
beads.
a. write and graph a system of linear
inequalities that represents the situation.
b. identify and interpret a solution of the system.
c. use the graph to determine whether you can buy 9 bags of red beads and
12 bags of blue beads.

Our star pitcher, foster enlight, can throw a pitch so fast that it gets to the catcher’s mitt before it leaves foster’s fingers! if the team wins a game then the probability that foster was pitching is 0.8 but only if foster had at least one day’s rest since his last pitching assignment. if foster does not have a day off and the team still wins, the probability that foster was pitching drops by half of what it was on the previous day. if the team wins three games in succession from the toronto tachyons and foster pitched in game #2, what is the probability that he pitched in one or more of the other games? (assume that foster did not pitch on the day before the first game of this three game series.)