If y varies inversely as x, and y =14 when x=8 , find y when x=7

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

Asphere has a diameter of 10 in. what is the volume of the sphere?

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5