1. The y-intercept 8 means you start off with $8. The slope 1/4 means how much money you have to pay for the amount of tickets purchased for carnival games.
2. The y-intercept 2 means the number of chapters you started reading and the slope 5/4 means the number of chapters you read per day.
3. The y-intercept 3 means the inital (start) cost of a muffin delivery and the slope 2 means the cost of each muffin delivery for the number of muffins you ordered.
Number 3 on the slope part might be the other way around if I'm wrong :)
$36 I think $0.89 rounds up to $1.00 $0.75 rounds up to $1.00 $1.60 rounds up to $2.00 then multiply each by 9 for the 9 children 9 9 18 then add together 9+9+18=36
