Figure abcd is plotted on a coordinate plane. the figure transforms to create figure a'b'c'd'. which transformation took place?
a. counterclockwise rotation through 90° about the origin
b..reflection across the origin
c. reflection across the y-axis
d. clockwise rotation through 180° about the origin
e. reflection across the x-axis

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0

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.)