Can someone help please?

An equation where variables are used to represent known values—function notation true or false

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 number of ways in which a line and a circle can intersect