Answer:
n+5
Step-by-step explanation:
What do you notice about each input and output?
9-4=13-8=14-9=5
each has a difference of 5!
Thus if we put in some random number n, then the output will be 5 greater!
Thus we get,
n+5
The first one would be 9.45 I believe
The second one would be 5.50 I believe
The third one would be 5.40 I believe
And the fourth one should be 8.24
Sorry if incorrect
5(3x-7)=20
15x-35=20
15x= 55
x= 55/15
x= 11/3
Plug this x value in.
6(11/3)-8
66/3 -8
22-8
14
Final answer: 14
Answer: 
Step-by-step explanation:
By definition, a Dilation is a transformation in which the image has the same shape as the pre-image but size changes.
The center of dilation is a fixed point in the plane, and the scale factor is the ratio of the corresponding sides of the image to the pre-image.
Based on the information provided in the exercise, you know that:

Thererefore, you can determine that the scale factor is:
Answer:
Step-by-step explanation:
Given the first line has 10 marbles and each following line has one less, the general equation is the nth line will have 10-(n-1) marbles.
So the sixth line has 10-(6-1) = 5 marbles.