Michelle took 9 hours of surfing lessons in August. This was 1/6the number of hours of surfing lessons Jack took in August. How many hours of surfing lessons did Jack take?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?

Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 46, 19, 38, 27, 12, 38, 51 minimum maximum median upper quartile lower quartile