This is a map test don't answer if you don't know the answer

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

If g^-1(x) is the inverse of g (x) which statement must be true

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?