Please answer correctly

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

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose