Do anyone know this? asap

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

Find the difference (8ab+a+2) - (3ab+6)

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers