Answer:
1). Does Not
2). Ratio
Step-by-step explanation:
According to the Question,
Given that, Luis has saved $15. He doubles the amount he saves each week.
- This DOES NOT represent an exponential function, because his savings increase by a constant RATIO.
Disjoint events are those which do not have any outcome in common. From the given options only option D represents such an event.
Spinning a number less than 4 will result in 1,2 or 3 as outcome. Second event is getting a 6. So these two events do not have anything in common.
Thus, the answer is option D
The relationship between the cost of books and pens is an illustration of linear equation.
The linear equation is (a) 
From the question, we have:
x exceeds 2 times y by 10
Rewrite as:
x exceeds 2y by 10
Exceed means plus (+)
So, we have:

Equate the above equation to 0

Hence, the required equation is (a) 
Read more about linear equation at:
brainly.com/question/11897796
K could either be a 16 or -24
Answer:
20th day
Step-by-step explanation:
you: 4,8,12,16,20,24
sister:5,10,15,20,25
20 is the day where they meet