Answer:

Explanation:
We have been given with the quadratic equation 
We have general formula to find the roots of a quadratic equation first we find the discriminant with formula

and after that to find the variable suppose x we have the formula

And general quadratic equation is

On comparing the given quadratic equation with genral quadratic equation we will have values
a=1, b=-7 and c=-6
After substituting these values in the formula we will get

After substituting in the formula to find x we will get

You multiply 76 by 0.93. That is 70.68 which rounds to 71. To check, (71/76) = ~93.
Answer:
Hannah has 56
Step-by-step explanation:
Hannah receives 7 for every 3rd Zoe gets. Take Zoe's amount, divide it by three, and you get 8. 8*7 is 56.
Answer:
He lost 50% and he was 25 left I think
Step-by-step explanation:
The correct answer is -70 if you substitute in -7 for c the equation will be = -63 -7 = -70