Mr. and mrs. nelson are going to build a new home. they need to have working drawings of their house plans created by a design firm. they will choose between rock the house digital designs and elegant home architects. rock the house digital designs charges $500.00 for the initial consultation with the nelsons, plus $50.00 for every additional hour of work for the house plans. elegant home architects charge $75.00 per hour for the house plans. let ℎ represent the number of hours for which mr. and mrs. nelson hire the design firm. which of the following statements are true? select all that apply.