Final answer:
The student government should choose City Express for their advertisement because it provides the largest space at Seven-eighths of a page, which is larger than the other options.
Step-by-step explanation:
The student government wants to put an ad in the newspaper that offers the largest advertisement space. To determine which newspaper offers the largest space, we need to compare the fractions representing the advertisement space each newspaper provides: Seven-eighths, Five-sixths, and Nine-twelfths. To compare these, it is helpful to convert them to have a common denominator or to convert them to decimal form.
Seven-eighths = 7/8 = 0.875
Five-sixths = 5/6 ≈ 0.833
Nine-twelfths = 9/12 = 0.75
Comparing these values, it's evident that Seven-eighths (7/8) is the largest fraction. Therefore, the City Express offers the largest advertisement space and it should be the newspaper of choice for running the fundraiser ad.