The deck consists of 4 jacks, 26 black cards, and 13 hearts.
There is only 1 way of drawing all 4 jacks: 
.
There are 
ways of drawing 4 black cards.
There are 
ways of drawing 4 hearts.
There are 
ways of drawing any 4 cards.
The probabilities are then
a.
b.
c.
Answer
Because the function says 1.045 means 1+0.045
0.045=4.5%
So your answer is
4.50%
The app will only let me give one photo at a time, so here's part 1.
Mult. the 2nd eqn by 6 and then add this "new" equation to the 1st given eqn:
-6x + y = -2
6x -18y = 54
--------------------
-17y = 52, or y = -52/17. Subst. this value of y into either equation to find the value of x.
