Select the correct statement about the function represented by the table.

B.  It is an exponential function because the y values increases by an equal factor over equal intervals of x value

Step-by-step explanation:

WE are given with a table

Let find the difference in y values  and difference is x values

Difference in x value is 1

LEt check the difference in y values

21- 7 = 16

63- 21= 42

Difference in y values/ x values is not a constant . So it is not linear function

It is an exponential function

Now we consider the y values

7 *3 = 21

21 * 3= 63

63* 3= 189

We can see that y values are increasing by a factor of 3

the y values increases by an equal factor 3 over equal intervals of x value (1)

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

180

step-by-step explanation: