Answer: 10
Step-by-step explanation:
If we call the unknown number x, we have:
- 7 times a certain number is

- If we subtract 8, we have

If this equals 34, we have

Add 8 to both sides:

Divide both sides by 7:

Answer:
12.
Step-by-step explanation:
it takes 24 days to completely cover the whole pond.
to cover half the pond, it takes an x amount of time (x is unknown) x is equal to the half of 24. That means 24 = 2x and x=12.
Answer:
g(x) not negitive
Step-by-step explanation: