Mary having her living room and bedroom painted. interior designs usa charges $60.00 to evaluate the space plus $35.00 per hour of labor. splash of color charges $55.00 per hour with no initial fee. which of the following are true? select all that apply. if it takes 7 hours to paint the two rooms, interior designs usa will charge the least. splash of color will always charge the least. if it takes more than 5 hours to paint the rooms, splash of color will be more cost effective. if it takes 10 hours to paint the rooms, splash of color will charge $200 more than interior designs usa. if it takes 3 hours to paint the rooms, both companies will charge the same amount.