Answer:
I do not know how to read Spanish sorry........
Step-by-step explanation:
Since Mark's brother is five years older than Mark and their combined ages add up to 23 than Mark must be 9.
Since 9 + 14 = 23, and 14 - 9 = 23
Mark brother is 14 but Mark is 9
Mark is 9 years old.
Hope this helps :0
Answer:
Again...
Step-by-step explanation:
F(x) = 3x^2 + 4x - 1
f(-3) = 3(-3)^2 + 4(-3) - 1
f(-3) = 3 * 9 - 12 - 1
f(-3) = 27 - 12 - 1
f(-3) = 15 - 1
f(-3) = 14
Answer:
200 is your answer. (insert more text to be helpful here)