The simple interest is 135$ per year, or 675$ total.
The compounded interest is 135$ the first year, 141.08$ the second year, 147.42$ the third year, 154.06$ the fourth year, and 160.99$ the fifth year, or 378.55$ total.
115.62 times 3 equals 346.86
then both flights together would be 45.70 plus 32.49 equals 78.19
15 dollars a day for food times 4 equals 60
if he won 75 and lost 25 that would be like only winning 50
then you add them all up and subtract 50
346.86 + 78.19 + 60 - 50 equals 435.05
so he ended up paying 435.05
Graph K. This is because the cost of a gallon of milk is not increasing constantly, as in a linear rate, but it has only increased a few times in a year. Therefore, graph K shows that a gallon of milk is a steady, unchanged price, then the cost rises and stays the same, then rises again and stays the same. So, it is not a linear graph because the cost of the milk is not going up at a constant rate.
Nonlinear because y is squared
So, she has 550 dollars saved. If the junior season pass costs 315, you subtract that from 550. You should then have 235 dollars. Next, you divide 235 by 45 dollars per lesson, and you should get 5.22. You can't buy half a lesson, so she only has enough for 5 lessons.