The value of y varies inversely as the square of x, and y=4 when x=3. What is the value of x when y=9

Triangle xyz has vertices x(1,3), y(0,0)

Currently, the largest cruise ship has a tonnage of 225,282 gross tons (gt). which of the following is a reasonable estimate for the tonnage of this cruise ship? a. 2 × 10^5 gt b. 2 × 10^6 gt c. 2 × 10^-5 gt d. 2 × 10^-6 gt

Which is the best estimate of the product of 0.9 x 0.88? 0 0.25 0.5 1