How do you find the area of the heptagon?

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?

I’m stuck on this equation, anyone got the answer?

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c