Assume that you are taking a seven​-question true or false quiz. a. How many different ways are there to answer all seven ​questions?
b. How many ways are there to get no questions​ wrong? One​ question? Two​ questions?
c. ​If, not having​ studied, you simply guess at each​ answer, what are your chances of getting five or more​ correct?

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.

Using the rise/run counting method, the slope of the line is

Alarge cheese pizza costs $18. each topping you add on costs $1.50. how much would it cost to get a large cheese pizza with cc toppings added? write your answer as an expression