Steven earned $40 for a weeks work. If he paid 10% of it in taxes how much did he pay in taxes. Explain your answer

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

How do you do the foil method with polynomials?

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.)