From a standard normal distribution table, the z-score corresponding to a cumulative probability of 0.99 is 2.33:
The answer is: John listens at least 214.8 hours per year.
Step-by-step explanation:
Use the FOIL method
w × 6w =
w × 2z = 2wz
-7z × 6w = -42wz
-7z × 2z =
this simplified equals
first term: 6w^2
second term: -40wz
third term: -14z^2
Sorry man, don’t know it, hopefully you get someone who knows
1) m-13=7
2)m-13=7
m-13+13=7+13
m=20
so he had $20 he spent $13 so $7 was left!
BRAINLIEST???