The amount of money Troy charges to mow a lawn is proportional to the time it takes him to mow the lawn. Troy charges $30 an hour to mow a lawn that took him 1.5 hours to mow. Which equation models the amount of dollars, d, Troy charges when it takes him h hours to mow a lawn?

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.