Positive fractions less than 1 with an interval of 1/8

Your friend swims on the school team. in his first four races, his times are 24.7, 23.5, 25.6, and 27.2 seconds. which time listed for his next race would make the range larger?

Which equation represents the function on the graph?

Which of the following circles have their centers on the x-axis? check all that apply.