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 
(2x10^3) x (4x10^4) = 8x10^1
Answer:
<u>-1=5.3</u>
<u />
<em>not sure if this is right; it should be though</em>
<em></em>
Step-by-step explanation:
2.1(0) - (1+2(0))= 5.3
-(1)=5.3
-1=5.3
Answer: -29.3
Step-by-step explanation: -7y + 2x
-7(-6.3) + 2(-7.4) = -29.3
Answer:
x = -10
Step-by-step explanation:
move all the constants (numbers without variables) to one side to get
-4x = 42 - 2
-4x = 40
multiply by -1
4x = -40
divide by 4
x = -10