(10) The number of passengers on an airline rose fairly steadily from about 200 000 in 2005 to
about 350 000 in the year 2010 .
a How many years are there from 2005 to
2010 inclusive?
b What was the average increase in the
number of passengers per year?
c Estimate the total number of passengers
from 2005 to 2010

I'm confused on this could anyone me and show me what i need to do to solve it.

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size.it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)