Final answer:
The ratio of vehicles that are not minivans to the total number of vehicles, expressed as a decimal, is 0.3621.
Step-by-step explanation:
The student asked to express the ratio of vehicles other than minivans to the total number of vehicles as a decimal. Given that 116 vehicles went through Express Car Wash, and 74 were minivans, this means that there were 116 - 74 = 42 vehicles that were not minivans. To find the desired ratio as a decimal, we divide the number of non-minivan vehicles (42) by the total number of vehicles (116).
The calculation is: 42 / 116 = 0.3621 (rounded to four decimal places).
Therefore, the ratio of vehicles other than minivans to the total number of vehicles as a decimal is 0.3621.