Answer:
25 km
Step-by-step explanation:
Answer:
B)She should accept because the probability of Door C being the Grand Prize increased.
Hope you do well on the rest of the test!
The answer is: (z - 6)(z + 15)
z² + 9z - 90 = z*z + 15z - 6z - 6*15 =
= (z*z + 15z) - (6z + 6*15) =
= z(z + 15) - 6(z + 15) =
= (z - 6)(z + 15)