F(4)=(4-1)+2*4=11...
This seems a bit too easy though, did you mean f(n)=f(n-1)+2n ? In this case :
f(1)=16
f(2)=16+2*2=20
f(3)=20+2*3=26
f(4)=26+2*4=34
Since the scale factor is 0.5, it means that you have to divide in half each side.
x= 7/2= 3.5
y= 12/2= 6
z= 6/2= 3.25
0.625 that’s the answer cause u have to divide the top and the bottom
The number is 5. All you have to do is make an equation based on the information you have, x will represent the missing number so, x to the power of 10 divided by x to the power of 7 is equal to 125, then solve.
The answer is going to be 2
