The variable x and y vary inversely, and y=9 when x=2. Write an equation that relates x and y. Then find y when x=8.

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.