Can someone help me? I've been stuck on this for a while :(

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

Which letters from the table represent like terms? a and b b and c a and d b and d

What function has a range {yly< 5}? question on picture above^