Question 1: 155 people visit a Leisure Centre. 97 use the waterslide. 43 use the sauna. 43 people do not use
either the water slide or the sauna. If one person is chosen at random, find the probability that
this person uses both the waterslide and the sauna.

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

The half-life of a certain material is 0.004 second. approximately how much of a 20-gram sample will be left after 0.016 second? a. 5 grams b. 16 grams c. 0.32 gram d. 1.25 grams