Check for reasonableness 643 + 282

An unknown number of kids and buses are getting assigned. when assigning 4 kids to each bus, there are 2 kids that aren't placed in a bus. when assigning 8 kids to each bus, there are 2 empty buses. how many total kids are there?

In the geometric progression –3, 12, −48… what term is 3,072?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.