Choose all the equations that are true if x=9

Construct the graph that models the given situation

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.

Does the construction demonstrate how to copy an angle correctly using technology a) yes the distance between points a and f was used to create circle h b) yes the distance between points f and g was used to create circle h c) no the distance between points a and f was used to create circle h d) no the distance between points f and g was used to create circle h