Answer: 
Step-by-step explanation:
given data:
number to be chosen from = 1,2,3,4.
<u><em>Solution:</em></u>
ways the number can show
ways for your number to appear once.
ways for your number to appear twice.
ways for your number not to appear at all
expected return of the player is
Answer:
positive
Step-by-step explanation:
Most of line a is in the positive so I would say positive
a
Step-by-step explanation:
you are trying to divide x by 7 to isolate x. so you divide by 8 on both sides.
It keeps going up by 2......3....4....5.... so the answer is easy, 15 + 6 = 21!
