How do i turn 7 over 8 divided by 2 over 5 into a mixed fraction

The verbal translation for the difference of m and 7 increased by 15

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

Select the sequences that are geometric.