Answer:
the answer is a
you can subsitute or work backwards
3x^2+-8
This answer for (3x+4) (x-2)
Answer:

Step-by-step explanation:
we know that
The circumference of a circle is equal to

we have

assume

substitute the values and solve for r

![r=32.7/[2(3.14)]](https://tex.z-dn.net/?f=r%3D32.7%2F%5B2%283.14%29%5D)

For Sammie the equation would be S=3N.
If Nora (N) has 4 goldfish, you substitute N=4 into the previous equation to find out how many goldfish Sammie has.
> S= 3 x 4
= 12
The next part of the question is asking you how many goldfish do Sammie and Nora have in all. If Sammie has 12 goldfish and Nora has 4 goldfish, the equation would be 12 + 4= 16
The answer would be 16 goldfish in total.