PLEASE HELP TEN QUESTIONS WILL MARK FIRST AND BEST ANSWRR BRAINLIST

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?

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.